diff --git a/lists/.idea/encodings.xml b/lists/.idea/encodings.xml
deleted file mode 100755
index f13fa33..0000000
--- a/lists/.idea/encodings.xml
+++ /dev/null
@@ -1,4 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="Encoding" addBOMForNewFiles="with NO BOM" />
-</project>
\ No newline at end of file
diff --git a/lists/.idea/libraries/Dart_Packages.xml b/lists/.idea/libraries/Dart_Packages.xml
deleted file mode 100755
index 728589f..0000000
--- a/lists/.idea/libraries/Dart_Packages.xml
+++ /dev/null
@@ -1,412 +0,0 @@
-<component name="libraryTable">
-  <library name="Dart Packages" type="DartPackagesLibraryType">
-    <properties>
-      <option name="packageNameToDirsMap">
-        <entry key="analyzer">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/analyzer-0.30.0+4/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="args">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/args-1.5.1/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="async">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/async-1.13.3/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="barback">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/barback-0.15.2+15/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="boolean_selector">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/boolean_selector-1.0.3/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="charcode">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/charcode-1.1.2/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="cli_util">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/cli_util-0.1.3/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="collection">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/collection-1.14.6/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="convert">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/convert-2.1.1/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="crypto">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/crypto-2.0.2+1/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="csslib">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/csslib-0.14.3/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="front_end">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/front_end-0.1.0-alpha.4.1/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="glob">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/glob-1.1.7/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="html">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/html-0.13.3/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="http">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/http-0.11.3+16/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="http_multi_server">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/http_multi_server-2.0.4/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="http_parser">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/http_parser-3.1.2/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="io">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/io-0.3.2+1/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="isolate">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/isolate-1.1.0/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="js">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/js-0.6.1+1/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="kernel">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/kernel-0.3.0-alpha.1.1/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="logging">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/logging-0.11.3+2/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="matcher">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/matcher-0.12.1+4/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="meta">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/meta-1.1.7/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="mime">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/mime-0.9.5/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="multi_server_socket">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/multi_server_socket-1.0.1/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="node_preamble">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/node_preamble-1.4.4/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="package_config">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/package_config-1.0.3/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="package_resolver">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/package_resolver-1.0.2/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="path">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/path-1.5.1/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="plugin">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/plugin-0.2.0+3/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="pool">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/pool-1.3.4/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="pub_semver">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/pub_semver-1.4.2/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="shelf">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/shelf-0.7.3/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="shelf_packages_handler">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/shelf_packages_handler-1.0.4/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="shelf_static">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/shelf_static-0.2.7/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="shelf_web_socket">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/shelf_web_socket-0.2.2/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="source_map_stack_trace">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/source_map_stack_trace-1.1.5/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="source_maps">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/source_maps-0.10.5/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="source_span">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/source_span-1.5.5/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="stack_trace">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/stack_trace-1.9.3/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="stream_channel">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/stream_channel-1.6.6/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="string_scanner">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/string_scanner-1.0.4/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="term_glyph">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/term_glyph-1.1.0/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="test">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/test-0.12.34/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="typed_data">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/typed_data-1.1.5/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="utf">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/utf-0.9.0+3/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="watcher">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/watcher-0.9.7+6/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="web_socket_channel">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/web_socket_channel-1.0.6/lib" />
-            </list>
-          </value>
-        </entry>
-        <entry key="yaml">
-          <value>
-            <list>
-              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/yaml-2.1.13/lib" />
-            </list>
-          </value>
-        </entry>
-      </option>
-    </properties>
-    <CLASSES>
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/analyzer-0.30.0+4/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/args-1.5.1/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/async-1.13.3/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/barback-0.15.2+15/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/boolean_selector-1.0.3/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/charcode-1.1.2/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/cli_util-0.1.3/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/collection-1.14.6/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/convert-2.1.1/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/crypto-2.0.2+1/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/csslib-0.14.3/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/front_end-0.1.0-alpha.4.1/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/glob-1.1.7/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/html-0.13.3/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/http-0.11.3+16/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/http_multi_server-2.0.4/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/http_parser-3.1.2/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/io-0.3.2+1/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/isolate-1.1.0/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/js-0.6.1+1/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/kernel-0.3.0-alpha.1.1/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/logging-0.11.3+2/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/matcher-0.12.1+4/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/meta-1.1.7/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/mime-0.9.5/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/multi_server_socket-1.0.1/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/node_preamble-1.4.4/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/package_config-1.0.3/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/package_resolver-1.0.2/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/path-1.5.1/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/plugin-0.2.0+3/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/pool-1.3.4/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/pub_semver-1.4.2/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/shelf-0.7.3/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/shelf_packages_handler-1.0.4/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/shelf_static-0.2.7/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/shelf_web_socket-0.2.2/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/source_map_stack_trace-1.1.5/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/source_maps-0.10.5/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/source_span-1.5.5/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/stack_trace-1.9.3/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/stream_channel-1.6.6/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/string_scanner-1.0.4/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/term_glyph-1.1.0/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/test-0.12.34/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/typed_data-1.1.5/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/utf-0.9.0+3/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/watcher-0.9.7+6/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/web_socket_channel-1.0.6/lib" />
-      <root url="file://$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/yaml-2.1.13/lib" />
-    </CLASSES>
-    <JAVADOC />
-    <SOURCES />
-  </library>
-</component>
\ No newline at end of file
diff --git a/lists/.idea/libraries/Dart_SDK.xml b/lists/.idea/libraries/Dart_SDK.xml
deleted file mode 100755
index edc7e75..0000000
--- a/lists/.idea/libraries/Dart_SDK.xml
+++ /dev/null
@@ -1,26 +0,0 @@
-<component name="libraryTable">
-  <library name="Dart SDK">
-    <CLASSES>
-      <root url="file://E:/Tools/dart124/dart-sdk/lib/async" />
-      <root url="file://E:/Tools/dart124/dart-sdk/lib/collection" />
-      <root url="file://E:/Tools/dart124/dart-sdk/lib/convert" />
-      <root url="file://E:/Tools/dart124/dart-sdk/lib/core" />
-      <root url="file://E:/Tools/dart124/dart-sdk/lib/developer" />
-      <root url="file://E:/Tools/dart124/dart-sdk/lib/html" />
-      <root url="file://E:/Tools/dart124/dart-sdk/lib/indexed_db" />
-      <root url="file://E:/Tools/dart124/dart-sdk/lib/io" />
-      <root url="file://E:/Tools/dart124/dart-sdk/lib/isolate" />
-      <root url="file://E:/Tools/dart124/dart-sdk/lib/js" />
-      <root url="file://E:/Tools/dart124/dart-sdk/lib/js_util" />
-      <root url="file://E:/Tools/dart124/dart-sdk/lib/math" />
-      <root url="file://E:/Tools/dart124/dart-sdk/lib/mirrors" />
-      <root url="file://E:/Tools/dart124/dart-sdk/lib/svg" />
-      <root url="file://E:/Tools/dart124/dart-sdk/lib/typed_data" />
-      <root url="file://E:/Tools/dart124/dart-sdk/lib/web_audio" />
-      <root url="file://E:/Tools/dart124/dart-sdk/lib/web_gl" />
-      <root url="file://E:/Tools/dart124/dart-sdk/lib/web_sql" />
-    </CLASSES>
-    <JAVADOC />
-    <SOURCES />
-  </library>
-</component>
\ No newline at end of file
diff --git a/lists/.idea/lists.iml b/lists/.idea/lists.iml
deleted file mode 100755
index f298e84..0000000
--- a/lists/.idea/lists.iml
+++ /dev/null
@@ -1,14 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module type="JAVA_MODULE" version="4">
-  <component name="NewModuleRootManager" inherit-compiler-output="true">
-    <exclude-output />
-    <content url="file://$MODULE_DIR$">
-      <excludeFolder url="file://$MODULE_DIR$/.pub" />
-      <excludeFolder url="file://$MODULE_DIR$/build" />
-    </content>
-    <orderEntry type="inheritedJdk" />
-    <orderEntry type="sourceFolder" forTests="false" />
-    <orderEntry type="library" name="Dart SDK" level="project" />
-    <orderEntry type="library" name="Dart Packages" level="project" />
-  </component>
-</module>
\ No newline at end of file
diff --git a/lists/.idea/modules.xml b/lists/.idea/modules.xml
deleted file mode 100755
index 965aa4f..0000000
--- a/lists/.idea/modules.xml
+++ /dev/null
@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectModuleManager">
-    <modules>
-      <module fileurl="file://$PROJECT_DIR$/.idea/lists.iml" filepath="$PROJECT_DIR$/.idea/lists.iml" />
-    </modules>
-  </component>
-</project>
\ No newline at end of file
diff --git a/lists/.idea/workspace.xml b/lists/.idea/workspace.xml
deleted file mode 100755
index bec3ecf..0000000
--- a/lists/.idea/workspace.xml
+++ /dev/null
@@ -1,418 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ChangeListManager">
-    <list default="true" id="1e7c422d-c54f-4817-918c-5cbd8cef7c7b" name="Default Changelist" comment="" />
-    <option name="EXCLUDED_CONVERTED_TO_IGNORED" value="true" />
-    <option name="SHOW_DIALOG" value="false" />
-    <option name="HIGHLIGHT_CONFLICTS" value="true" />
-    <option name="HIGHLIGHT_NON_ACTIVE_CHANGELIST" value="false" />
-    <option name="LAST_RESOLUTION" value="IGNORE" />
-  </component>
-  <component name="FileEditorManager">
-    <leaf SIDE_TABS_SIZE_LIMIT_KEY="300">
-      <file pinned="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/pubspec.yaml">
-          <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="17">
-              <caret line="1" column="14" selection-start-line="1" selection-start-column="14" selection-end-line="1" selection-end-column="14" />
-            </state>
-          </provider>
-        </entry>
-      </file>
-      <file pinned="false" current-in-tab="true">
-        <entry file="file://$PROJECT_DIR$/CHANGELOG.md">
-          <provider selected="true" editor-type-id="text-editor">
-            <state>
-              <caret column="8" selection-start-column="8" selection-end-column="8" />
-            </state>
-          </provider>
-        </entry>
-      </file>
-      <file pinned="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/README.md">
-          <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="85">
-              <caret line="5" column="14" selection-start-line="5" selection-start-column="14" selection-end-line="5" selection-end-column="14" />
-            </state>
-          </provider>
-        </entry>
-      </file>
-    </leaf>
-  </component>
-  <component name="FileTemplateManagerImpl">
-    <option name="RECENT_TEMPLATES">
-      <list>
-        <option value="Dart File" />
-      </list>
-    </option>
-  </component>
-  <component name="FindInProjectRecents">
-    <findStrings>
-      <find>key</find>
-      <find>set</find>
-    </findStrings>
-  </component>
-  <component name="IdeDocumentHistory">
-    <option name="CHANGED_PATHS">
-      <list>
-        <option value="$PROJECT_DIR$/example/delete_me.dart" />
-        <option value="$PROJECT_DIR$/test/sparse_list_test.dart" />
-        <option value="$PROJECT_DIR$/analysis_options.yaml" />
-        <option value="$PROJECT_DIR$/test/wrapped_list_test.dart" />
-        <option value="$PROJECT_DIR$/lib/src/grouped_range_list.dart" />
-        <option value="$PROJECT_DIR$/lib/src/sparse_bool_list.dart" />
-        <option value="$PROJECT_DIR$/example/example.dart" />
-        <option value="$PROJECT_DIR$/lib/src/list_pointer.dart" />
-        <option value="$PROJECT_DIR$/lib/src/sparse_list.dart" />
-        <option value="$PROJECT_DIR$/lib/src/bit_list.dart" />
-        <option value="$PROJECT_DIR$/lib/src/range_list.dart" />
-        <option value="$PROJECT_DIR$/lib/src/step_list.dart" />
-        <option value="$PROJECT_DIR$/lib/src/wrapped_list.dart" />
-        <option value="$PROJECT_DIR$/lib/src/filled_list.dart" />
-        <option value="$PROJECT_DIR$/pubspec.yaml" />
-        <option value="$PROJECT_DIR$/README.md" />
-        <option value="$PROJECT_DIR$/CHANGELOG.md" />
-      </list>
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-  </component>
-  <component name="ProjectFrameBounds">
-    <option name="x" value="75" />
-    <option name="y" value="34" />
-    <option name="width" value="1837" />
-    <option name="height" value="934" />
-  </component>
-  <component name="ProjectView">
-    <navigator proportions="" version="1">
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-    </navigator>
-    <panes>
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-      <pane id="ProjectPane">
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-          <expand>
-            <path>
-              <item name="lists" type="b2602c69:ProjectViewProjectNode" />
-              <item name="lists" type="462c0819:PsiDirectoryNode" />
-            </path>
-            <path>
-              <item name="lists" type="b2602c69:ProjectViewProjectNode" />
-              <item name="lists" type="462c0819:PsiDirectoryNode" />
-              <item name="example" type="462c0819:PsiDirectoryNode" />
-            </path>
-            <path>
-              <item name="lists" type="b2602c69:ProjectViewProjectNode" />
-              <item name="lists" type="462c0819:PsiDirectoryNode" />
-              <item name="lib" type="462c0819:PsiDirectoryNode" />
-            </path>
-            <path>
-              <item name="lists" type="b2602c69:ProjectViewProjectNode" />
-              <item name="lists" type="462c0819:PsiDirectoryNode" />
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-            <path>
-              <item name="lists" type="b2602c69:ProjectViewProjectNode" />
-              <item name="lists" type="462c0819:PsiDirectoryNode" />
-              <item name="test" type="462c0819:PsiDirectoryNode" />
-            </path>
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-          <select />
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-      <pane id="Scope" />
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-                <option value="0.2" />
-              </list>
-            </option>
-          </splitter-proportions>
-        </settings>
-      </state>
-    </states>
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-</project>
\ No newline at end of file
diff --git a/lists/BUILD.gn b/lists/BUILD.gn
index dfd1075..ea498bc 100644
--- a/lists/BUILD.gn
+++ b/lists/BUILD.gn
@@ -1,4 +1,4 @@
-# This file is generated by importer.py for lists-0.1.3
+# This file is generated by importer.py for lists-0.1.4
 
 import("//build/dart/dart_library.gni")
 
diff --git a/lists/CHANGELOG.md b/lists/CHANGELOG.md
index 6a54d94..f5c6393 100755
--- a/lists/CHANGELOG.md
+++ b/lists/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 0.1.4
+
+- Source code changed to be more pedantic
+
 ## 0.1.3
 
 - Minor changes
diff --git a/lists/README.md b/lists/README.md
index 9fe9bb0..e9c4a05 100755
--- a/lists/README.md
+++ b/lists/README.md
@@ -3,7 +3,7 @@
 
 Collection of the lists (BitList, FilledList, GroupedRangeList, ListPointer, RangeList, SparseBoolList, SparseList, StepList, WrappedList).
 
-Version: 0.1.3
+Version: 0.1.4
 
 ```dart
 import "package:lists/lists.dart";
diff --git a/lists/analysis_options.yaml b/lists/analysis_options.yaml
index c230cee..c1aa82f 100755
--- a/lists/analysis_options.yaml
+++ b/lists/analysis_options.yaml
@@ -1,4 +1,34 @@
 include: package:pedantic/analysis_options.yaml
 analyzer:
   strong-mode:
-    implicit-casts: false
\ No newline at end of file
+    implicit-casts: false
+linter:
+  rules:
+    - avoid_annotating_with_dynamic
+    - avoid_empty_else
+    - avoid_init_to_null
+    - avoid_relative_lib_imports
+    - avoid_return_types_on_setters
+    - avoid_shadowing_type_parameters
+    - avoid_types_as_parameter_names
+    - empty_constructor_bodies
+    - no_duplicate_case_values
+    - null_closures
+    - prefer_contains
+    - prefer_equal_for_default_values
+    - prefer_final_fields
+    - prefer_final_locals
+    - prefer_is_empty
+    - prefer_is_not_empty
+    - prefer_null_aware_operators
+    - prefer_relative_imports
+    - prefer_void_to_null
+    - recursive_getters
+    - slash_for_doc_comments
+    - unawaited_futures
+    - unnecessary_lambdas
+    - unnecessary_overrides
+    - unnecessary_parenthesis
+    - unrelated_type_equality_checks
+    - use_rethrow_when_possible
+    - valid_regexps
\ No newline at end of file
diff --git a/lists/example/example.dart b/lists/example/example.dart
index 92e37c4..5eb1ffa 100755
--- a/lists/example/example.dart
+++ b/lists/example/example.dart
@@ -1,4 +1,4 @@
-import "package:lists/lists.dart";
+import 'package:lists/lists.dart';
 
 void main() {
   bitList();
@@ -14,56 +14,56 @@
   // The bit state list with 65536 elements
   // Real size of the list (in memory) 30 times less
   // Exact size 2185 elements of 'Smi' values
-  var list = new BitList(65536);
+  var list = BitList(65536);
   list.set(32767);
   print(list.get(32767));
 
   // The list with 65536 elements set to true
-  list = new BitList(65536, true);
+  list = BitList(65536, true);
   print(list.get(32767));
 
   // The list with 1073741824 elements
-  list = new BitList(1073741824);
+  list = BitList(1073741824);
 }
 
 void filledList() {
   // The read only list with 40 values of "="
-  var list = new FilledList<String>(40, "=");
-  print("${list.join()}");
+  var list = FilledList<String>(40, '=');
+  print('${list.join()}');
 
   // The list with 10000000000000 values of "hello"
-  list = new FilledList<String>(10000000000000, "hello");
+  list = FilledList<String>(10000000000000, 'hello');
 }
 
 void rangeList() {
   // The values from 0 to 10
-  var list = new RangeList(0, 10);
+  var list = RangeList(0, 10);
   print("${list.join(", ")}");
 
   // The same values in reversed order
-  var reversed = list.reversed;
+  final reversed = list.reversed;
   print("${reversed.join(", ")}");
 
   // The same list with step 2
-  var list2 = list.toStepList(2);
+  final list2 = list.toStepList(2);
   print("${list2.join(", ")}");
 
   //  The values from -10000000000000 to 10000000000000
-  list = new RangeList(10000000000000, 10000000000000);
+  list = RangeList(10000000000000, 10000000000000);
 }
 
 void sparseBoolList() {
   // Really big size
-  var length = 2 * 1024 * 1024 * 1024;
-  var list = new SparseBoolList(length: length);
+  final length = 2 * 1024 * 1024 * 1024;
+  final list = SparseBoolList(length: length);
   var groupCount = 0;
   var offset = 0;
-  print("SparseBoolList: ${_format(length)} length.");
-  var sw = new Stopwatch();
+  print('SparseBoolList: ${_format(length)} length.');
+  final sw = Stopwatch();
   sw.start();
   while (true) {
-    var size = 128 * 1024;
-    list.setGroup(new GroupedRangeList(offset, offset + size, true));
+    final size = 128 * 1024;
+    list.setGroup(GroupedRangeList(offset, offset + size, true));
     offset += size + 128 * 1024;
     groupCount++;
     if (offset >= length) {
@@ -72,108 +72,108 @@
   }
   //
   sw.stop();
-  var elapsed = (sw.elapsedMilliseconds / 1000);
-  print("SparseBoolList: ${_format(groupCount)} groups added in $elapsed sec.");
+  var elapsed = sw.elapsedMilliseconds / 1000;
+  print('SparseBoolList: ${_format(groupCount)} groups added in $elapsed sec.');
   //
-  var accessed = 0;  
+  var accessed = 0;
   //
   sw.reset();
   sw.start();
   for (var i = 0; i < length; i += 100) {
-    var x = list[i];    
+    final x = list[i];
     accessed++;
   }
 
   sw.stop();
-  elapsed = (sw.elapsedMilliseconds / 1000);
+  elapsed = sw.elapsedMilliseconds / 1000;
   print(
-      "SparseBoolList: ${_format(accessed)} elements accessed in $elapsed sec.");
+      'SparseBoolList: ${_format(accessed)} elements accessed in $elapsed sec.');
 }
 
 void sparseList() {
   // Count is 50000 elements
-  var count = 50000;
-  var list = new SparseList();
+  final count = 50000;
+  final list = SparseList();
   var offset = 0;
-  var sw = new Stopwatch();
+  final sw = Stopwatch();
   sw.start();
   for (var i = 0; i < count; i++) {
     offset += 100;
-    var size = 100;
+    final size = 100;
     //list.addGroup(_grp(offset, offset + size, i));
-    list.addGroup(new GroupedRangeList(offset, offset + size, i));
+    list.addGroup(GroupedRangeList(offset, offset + size, i));
     offset += size;
   }
 
   sw.stop();
-  var elapsed = (sw.elapsedMilliseconds / 1000);
-  print("SparseList: ${_format(count)} groups added in $elapsed sec.");
+  var elapsed = sw.elapsedMilliseconds / 1000;
+  print('SparseList: ${_format(count)} groups added in $elapsed sec.');
   // Access all elements
   sw.reset();
   sw.start();
-  var length = list.length;
+  final length = list.length;
   for (var i = 0; i < length; i++) {
-    var x = list[i];
+    final x = list[i];
   }
 
   sw.stop();
-  elapsed = (sw.elapsedMilliseconds / 1000);
-  print("SparseList: ${_format(length)} elements accessed in $elapsed sec.");
+  elapsed = sw.elapsedMilliseconds / 1000;
+  print('SparseList: ${_format(length)} elements accessed in $elapsed sec.');
 }
 
 void stepList() {
   // The values from 0 to 10
-  var list = new StepList(0, 10);
+  var list = StepList(0, 10);
   print("${list.join(", ")}");
 
   // The values from 10 to 0
-  list = new StepList(10, 0);
+  list = StepList(10, 0);
   print("${list.join(", ")}");
 
   // The values from 0 to 10 with step 2
-  list = new StepList(0, 10, 2);
+  list = StepList(0, 10, 2);
   print("${list.join(", ")}");
 
   // The values from 10 to 0 with step -2
-  list = new StepList(10, 0, -2);
+  list = StepList(10, 0, -2);
   print("${list.join(", ")}");
 
   // The values from 0 to 255 with step 64
   const MIN_BYTE = 0;
   const MAX_BYTE = 255;
-  list = new StepList(MIN_BYTE, MAX_BYTE, (MAX_BYTE >> 2) + 1);
+  list = StepList(MIN_BYTE, MAX_BYTE, (MAX_BYTE >> 2) + 1);
   print("${list.join(", ")}");
 
   // The values from -10000000000000 to 10000000000000 with step 1
-  list = new StepList(-10000000000000, 10000000000000);
+  list = StepList(-10000000000000, 10000000000000);
 }
 
 void wrappedList() {
   // The read only wrapper for list
-  var source = [0, 1, 2, 3];
-  var list = new WrappedList<int>(source);
+  final source = [0, 1, 2, 3];
+  final list = WrappedList<int>(source);
   try {
     list[0] = 0;
   } catch (e) {
-    print("$e");
+    print('$e');
   }
 
   try {
     list.length = 0;
   } catch (e) {
-    print("$e");
+    print('$e');
   }
 }
 
 String _format(int number) {
-  var string = number.toString();
-  var length = string.length;
-  var list = <String>[];
+  final string = number.toString();
+  final length = string.length;
+  final list = <String>[];
   var count = 0;
   for (var i = length - 1; i >= 0; i--) {
     list.add(string[i]);
     if (count++ == 2) {
-      list.add(" ");
+      list.add(' ');
       count = 0;
     }
   }
diff --git a/lists/lib/lists.dart b/lists/lib/lists.dart
index e3de3a8..6668568 100755
--- a/lists/lib/lists.dart
+++ b/lists/lib/lists.dart
@@ -1,13 +1,13 @@
 library lists;
 
-import "dart:collection";
+import 'dart:collection';
 
-part "src/bit_list.dart";
-part "src/filled_list.dart";
-part "src/grouped_range_list.dart";
-part "src/list_pointer.dart";
-part "src/range_list.dart";
-part "src/sparse_bool_list.dart";
-part "src/sparse_list.dart";
-part "src/step_list.dart";
-part "src/wrapped_list.dart";
+part 'src/bit_list.dart';
+part 'src/filled_list.dart';
+part 'src/grouped_range_list.dart';
+part 'src/list_pointer.dart';
+part 'src/range_list.dart';
+part 'src/sparse_bool_list.dart';
+part 'src/sparse_list.dart';
+part 'src/step_list.dart';
+part 'src/wrapped_list.dart';
diff --git a/lists/lib/src/bit_list.dart b/lists/lib/src/bit_list.dart
index 28bf2c0..bf37a3c 100755
--- a/lists/lib/src/bit_list.dart
+++ b/lists/lib/src/bit_list.dart
@@ -7,57 +7,61 @@
 
   BitList(int length, [bool fill]) {
     if (length == null || length < 0) {
-      throw new ArgumentError("length: $length");
+      throw ArgumentError('length: $length');
     }
 
     _length = length;
-    var slots = (length - 1) ~/ 30 + 1;
+    final slots = (length - 1) ~/ 30 + 1;
     if (fill == true) {
-      _list = new List<int>.filled(slots, 0x3fffffff);
+      _list = List<int>.filled(slots, 0x3fffffff);
     } else {
-      _list = new List<int>.filled(slots, 0);
+      _list = List<int>.filled(slots, 0);
     }
   }
 
   /// Returns the length of list.
+  @override
   int get length => _length;
 
   /// Sets the length of list.
+  @override
   set length(int length) {
-    throw new UnsupportedError("length=");
+    throw UnsupportedError('length=');
   }
 
+  @override
   bool operator [](int index) {
     if (index == null) {
-      throw new ArgumentError("index: $index");
+      throw ArgumentError('index: $index');
     }
 
     if (index < 0 || index >= _length) {
-      throw new RangeError(index);
+      throw RangeError(index);
     }
 
-    var slot = index ~/ 30;
-    var position = slot * 30;
-    var mask = 1 << (index - position);
+    final slot = index ~/ 30;
+    final position = slot * 30;
+    final mask = 1 << (index - position);
     return (_list[slot] & mask) != 0;
   }
 
+  @override
   void operator []=(int index, bool value) {
     if (index == null) {
-      throw new ArgumentError("index: $index");
+      throw ArgumentError('index: $index');
     }
 
     if (index < 0 || index >= _length) {
-      throw new RangeError(index);
+      throw RangeError(index);
     }
 
     if (value == null) {
-      throw new ArgumentError("value: $value");
+      throw ArgumentError('value: $value');
     }
 
-    var slot = index ~/ 30;
-    var position = slot * 30;
-    var mask = 1 << (index - position);
+    final slot = index ~/ 30;
+    final position = slot * 30;
+    final mask = 1 << (index - position);
     if (value) {
       _list[slot] |= mask;
     } else {
diff --git a/lists/lib/src/filled_list.dart b/lists/lib/src/filled_list.dart
index d393bdf..b320db6 100755
--- a/lists/lib/src/filled_list.dart
+++ b/lists/lib/src/filled_list.dart
@@ -7,7 +7,7 @@
 
   FilledList(int length, E fill) {
     if (length == null || length < 0) {
-      throw new ArgumentError("length: $length");
+      throw ArgumentError('length: $length');
     }
 
     _fill = fill;
@@ -15,26 +15,30 @@
   }
 
   /// Returns the length of list.
+  @override
   int get length => _length;
 
   /// Sets the length of list.
+  @override
   set length(int length) {
-    throw new UnsupportedError("length=");
+    throw UnsupportedError('length=');
   }
 
+  @override
   E operator [](int index) {
     if (index == null) {
-      throw new ArgumentError("index: $index");
+      throw ArgumentError('index: $index');
     }
 
     if (index < 0 || index >= _length) {
-      throw new RangeError(index);
+      throw RangeError(index);
     }
 
     return _fill;
   }
 
+  @override
   void operator []=(int index, E value) {
-    throw new UnsupportedError("operator []=");
+    throw UnsupportedError('operator []=');
   }
 }
diff --git a/lists/lib/src/grouped_range_list.dart b/lists/lib/src/grouped_range_list.dart
index ff43b70..ee6b2ba 100755
--- a/lists/lib/src/grouped_range_list.dart
+++ b/lists/lib/src/grouped_range_list.dart
@@ -8,9 +8,10 @@
 
   /// Returns the intersection of this grouped range list and the [other] grouped
   /// range list; otherwise null.
+  @override
   GroupedRangeList<TKey> intersection(RangeList other) {
     if (other == null) {
-      throw new ArgumentError("other: $other");
+      throw ArgumentError('other: $other');
     }
 
     if (!intersect(other)) {
@@ -18,7 +19,7 @@
     }
 
     if (this == other) {
-      return new GroupedRangeList<TKey>(this.start, this.end, key);
+      return GroupedRangeList<TKey>(this.start, this.end, key);
     }
 
     var start = this.start;
@@ -31,34 +32,36 @@
       end = other.end;
     }
 
-    return new GroupedRangeList<TKey>(start, end, key);
+    return GroupedRangeList<TKey>(start, end, key);
   }
 
   /// Subtracts from this grouped range list the [other] grouped range list and
   /// returns the the resulting grouped ranges.
+  @override
   List<GroupedRangeList<TKey>> subtract(RangeList other) {
     if (other == null) {
-      throw new ArgumentError("other: $other");
+      throw ArgumentError('other: $other');
     }
 
-    var result = <GroupedRangeList<TKey>>[];
+    final result = <GroupedRangeList<TKey>>[];
     if (!intersect(other)) {
       return result;
     }
 
     if (start < other.start) {
-      result.add(new GroupedRangeList<TKey>(start, other.start - 1, key));
+      result.add(GroupedRangeList<TKey>(start, other.start - 1, key));
     }
 
     if (other.end < end) {
-      result.add(new GroupedRangeList<TKey>(other.end + 1, end, key));
+      result.add(GroupedRangeList<TKey>(other.end + 1, end, key));
     }
 
     return result;
   }
 
   /// Returns the string representation of grouped range list.
+  @override
   String toString() {
-    return "[$start..$end]($key)";
+    return '[$start..$end]($key)';
   }
 }
diff --git a/lists/lib/src/list_pointer.dart b/lists/lib/src/list_pointer.dart
index 4e2baa3..6b43291 100755
--- a/lists/lib/src/list_pointer.dart
+++ b/lists/lib/src/list_pointer.dart
@@ -19,20 +19,22 @@
   ///   Offset in the base list.
   ListPointer(this.base, [int offset = 0]) {
     if (base == null) {
-      throw new ArgumentError.notNull("base");
+      throw ArgumentError.notNull('base');
     }
 
     if (offset == null) {
-      throw new ArgumentError.notNull("offset");
+      throw ArgumentError.notNull('offset');
     }
 
     _offset = offset;
   }
 
+  @override
   int get length => base.length - _offset;
 
+  @override
   set length(int length) {
-    throw new UnsupportedError("set length");
+    throw UnsupportedError('set length');
   }
 
   /// Gets the offset.
@@ -41,26 +43,28 @@
   /// Sets the offset.
   set offset(int offset) {
     if (offset == null) {
-      throw new ArgumentError.notNull("offset");
+      throw ArgumentError.notNull('offset');
     }
 
     _offset = offset;
   }
 
-  ListPointer<T> operator +(dynamic other) {
+  @override
+  ListPointer<T> operator +(other) {
     if (other is int) {
-      return new ListPointer<T>(base, offset + other);
+      final i = other as int;
+      return ListPointer<T>(base, offset + i);
     }
 
-    throw new ArgumentError.value(other, "other");
+    throw ArgumentError.value(other, 'other');
   }
 
   ListPointer<T> operator -(other) {
     if (other is int) {
-      return new ListPointer<T>(base, offset - other);
+      return ListPointer<T>(base, offset - other);
     }
 
-    throw new ArgumentError.value(other, "other");
+    throw ArgumentError.value(other, 'other');
   }
 
   bool operator <(other) {
@@ -91,6 +95,7 @@
     return false;
   }
 
+  @override
   bool operator ==(other) {
     if (other is ListPointer) {
       if (identical(base, other.base)) {
@@ -137,19 +142,21 @@
     return false;
   }
 
+  @override
   T operator [](int index) {
     if (index == null) {
-      throw new ArgumentError.notNull("index");
+      throw ArgumentError.notNull('index');
     }
 
     return base[_offset + index];
   }
 
+  @override
   void operator []=(int index, value) {
     base[_offset + index] = value;
   }
 
   ListPointer<T> increment(int n) {
-    return new ListPointer<T>(base, offset + n);
+    return ListPointer<T>(base, offset + n);
   }
 }
diff --git a/lists/lib/src/range_list.dart b/lists/lib/src/range_list.dart
index 68bffa4..d68aaeb 100755
--- a/lists/lib/src/range_list.dart
+++ b/lists/lib/src/range_list.dart
@@ -10,37 +10,40 @@
 
   RangeList(this.start, this.end) {
     if (start == null) {
-      throw new ArgumentError("start: $start");
+      throw ArgumentError('start: $start');
     }
 
     if (end == null) {
-      throw new ArgumentError("end: $end");
+      throw ArgumentError('end: $end');
     }
 
     if (start > end) {
-      throw new StateError("Start '$start' greater then end '$end'");
+      throw StateError("Start '$start' greater then end '$end'");
     }
 
     _length = end - start + 1;
   }
 
   /// Returns the length of list.
+  @override
   int get length => _length;
 
   /// Sets the length of list.
+  @override
   set length(int length) {
-    throw new UnsupportedError("length=");
+    throw UnsupportedError('length=');
   }
 
+  @override
   RangeList operator +(List<int> other) {
     if (other == null || other is! RangeList) {
-      throw new ArgumentError("other: $other");
+      throw ArgumentError('other: $other');
     }
 
     int start;
     int end;
 
-    var otherRange = other as RangeList;
+    final otherRange = other as RangeList;
     if (this.start < otherRange.start) {
       start = this.start;
     } else {
@@ -53,9 +56,10 @@
       end = otherRange.end;
     }
 
-    return new RangeList(start, end);
+    return RangeList(start, end);
   }
 
+  @override
   bool operator ==(other) {
     if (identical(this, other)) {
       return true;
@@ -68,23 +72,26 @@
     return false;
   }
 
+  @override
   int operator [](int index) {
     if (index == null) {
-      throw new ArgumentError("index: $index");
+      throw ArgumentError('index: $index');
     }
 
     if (index < 0 || index >= _length) {
-      throw new RangeError(index);
+      throw RangeError(index);
     }
 
     return start + index;
   }
 
+  @override
   void operator []=(int index, int value) {
-    throw new UnsupportedError("operator []=");
+    throw UnsupportedError('operator []=');
   }
 
   /// Returns true if range list contains the [value]; otherwise false.
+  @override
   bool contains(value) {
     if (value == null ||
         value is! int ||
@@ -99,7 +106,7 @@
   /// Returns true if this range list includes [other]; otherwise false.
   bool includes(RangeList other) {
     if (other == null) {
-      throw new ArgumentError("other: $other");
+      throw ArgumentError('other: $other');
     }
 
     return (other.start >= start && other.start <= end) &&
@@ -109,7 +116,7 @@
   /// Returns true if this range list intersect [other]; otherwise false.
   bool intersect(RangeList other) {
     if (other == null) {
-      throw new ArgumentError("other: $other");
+      throw ArgumentError('other: $other');
     }
 
     return (start <= other.start && end >= other.start) ||
@@ -120,7 +127,7 @@
   /// otherwise null.
   RangeList intersection(RangeList other) {
     if (other == null) {
-      throw new ArgumentError("other: $other");
+      throw ArgumentError('other: $other');
     }
 
     if (!intersect(other)) {
@@ -128,7 +135,7 @@
     }
 
     if (this == other) {
-      return new RangeList(this.start, this.end);
+      return RangeList(this.start, this.end);
     }
 
     var start = this.start;
@@ -141,37 +148,38 @@
       end = other.end;
     }
 
-    return new RangeList(start, end);
+    return RangeList(start, end);
   }
 
   /// Subtracts from this range the [other] range and returns the the resulting
   /// ranges.
   List<RangeList> subtract(RangeList other) {
     if (other == null) {
-      throw new ArgumentError("other: $other");
+      throw ArgumentError('other: $other');
     }
 
-    var result = <RangeList>[];
+    final result = <RangeList>[];
     if (!intersect(other)) {
       return result;
     }
 
     if (start < other.start) {
-      result.add(new RangeList(start, other.start - 1));
+      result.add(RangeList(start, other.start - 1));
     }
 
     if (other.end < end) {
-      result.add(new RangeList(other.end + 1, end));
+      result.add(RangeList(other.end + 1, end));
     }
 
     return result;
   }
 
   /// Returns the list of elements with specified step.
-  StepList toStepList(int step) => new StepList(start, end, step);
+  StepList toStepList(int step) => StepList(start, end, step);
 
   /// Returns the string representation of range list.
+  @override
   String toString() {
-    return "[$start..$end]";
+    return '[$start..$end]';
   }
 }
diff --git a/lists/lib/src/sparse_bool_list.dart b/lists/lib/src/sparse_bool_list.dart
index 6abff20..02a58e7 100755
--- a/lists/lib/src/sparse_bool_list.dart
+++ b/lists/lib/src/sparse_bool_list.dart
@@ -6,26 +6,28 @@
 
   /// Sets the values ​​in accordance with the specified [group] and increases
   /// (if required) the length up to (range.end + 1).
+  @override
   void addGroup(GroupedRangeList<bool> group) {
     if (group == null) {
-      throw new ArgumentError("group: $group");
+      throw ArgumentError('group: $group');
     }
 
     if (group.key is! bool) {
-      throw new ArgumentError("Key '${group.key}' must be of type 'bool'.");
+      throw ArgumentError("Key '${group.key}' must be of type 'bool'.");
     }
 
     super.addGroup(group);
   }
 
   /// Sets the values ​​in accordance with the specified [group].
+  @override
   void setGroup(GroupedRangeList<bool> group) {
     if (group == null) {
-      throw new ArgumentError("group: $group");
+      throw ArgumentError('group: $group');
     }
 
     if (group.key is! bool) {
-      throw new ArgumentError("Key '${group.key}' must be of type 'bool'.");
+      throw ArgumentError("Key '${group.key}' must be of type 'bool'.");
     }
 
     super.setGroup(group);
diff --git a/lists/lib/src/sparse_list.dart b/lists/lib/src/sparse_list.dart
index e5da68d..f3c0ea5 100755
--- a/lists/lib/src/sparse_list.dart
+++ b/lists/lib/src/sparse_list.dart
@@ -12,16 +12,17 @@
 
   bool _frozen = false;
 
-  List<GroupedRangeList<E>> _groups = <GroupedRangeList<E>>[];
+  final List<GroupedRangeList<E>> _groups = <GroupedRangeList<E>>[];
 
   int _length;
 
-  SparseList({this.defaultValue, bool equals(E e1, E e2), int length}) {
+  SparseList(
+      {this.defaultValue, bool Function(E e1, E e2) equals, int length}) {
     if (length == null) {
       length = 0;
     } else {
       if (length < 0) {
-        throw new ArgumentError("length: $length");
+        throw ArgumentError('length: $length');
       }
 
       _fixedLength = true;
@@ -37,7 +38,7 @@
 
   /// Returns the 'end' value from the last group (if available); otherwise null.
   int get end {
-    var length = _groups.length;
+    final length = _groups.length;
     if (_groups.isEmpty) {
       return null;
     }
@@ -55,19 +56,21 @@
 
   /// Returns a read-only list of the groups.
   List<GroupedRangeList<E>> get groups =>
-      new UnmodifiableListView<GroupedRangeList<E>>(_groups);
+      UnmodifiableListView<GroupedRangeList<E>>(_groups);
 
   /// Returns the length of list.
+  @override
   int get length => _length;
 
   /// Sets the length of list.
+  @override
   set length(int length) {
     if (length == null) {
-      throw new ArgumentError("length: $length");
+      throw ArgumentError('length: $length');
     }
 
     if (_fixedLength) {
-      throw new StateError("Unable to set the length of a fixed list.");
+      throw StateError('Unable to set the length of a fixed list.');
     }
 
     if (frozen) {
@@ -75,7 +78,7 @@
     }
 
     if (length < 0) {
-      throw new RangeError(length);
+      throw RangeError(length);
     }
 
     if (_length == length) {
@@ -93,7 +96,7 @@
       return;
     }
 
-    _resetValues(new RangeList(length, _length - 1));
+    _resetValues(RangeList(length, _length - 1));
     _length = length;
   }
 
@@ -107,13 +110,14 @@
     return _groups[0].start;
   }
 
+  @override
   E operator [](int index) {
     if (index == null) {
-      throw new ArgumentError("index: $index");
+      throw ArgumentError('index: $index');
     }
 
     if (index < 0 || index >= _length) {
-      throw new RangeError(index);
+      throw RangeError(index);
     }
 
     var right = _groups.length;
@@ -122,7 +126,7 @@
     }
 
     if (right == 1) {
-      var group = _groups[0];
+      final group = _groups[0];
       if (index <= group.end && index >= group.start) {
         return group.key;
       } else {
@@ -131,12 +135,12 @@
     }
 
     var left = 0;
-    var key = index;
+    final key = index;
     int middle;
-    var value = defaultValue;
+    final value = defaultValue;
     while (left < right) {
       middle = (left + right) >> 1;
-      var group = _groups[middle];
+      final group = _groups[middle];
       if (group.end < key) {
         left = middle + 1;
       } else {
@@ -151,9 +155,10 @@
     return value;
   }
 
+  @override
   void operator []=(int index, E value) {
     if (index == null) {
-      throw new ArgumentError("index: $index");
+      throw ArgumentError('index: $index');
     }
 
     if (frozen) {
@@ -161,13 +166,13 @@
     }
 
     if (index < 0 || index >= _length) {
-      throw new RangeError(index);
+      throw RangeError(index);
     }
 
     if (_equals(value, defaultValue)) {
-      _resetValues(new RangeList(index, index));
+      _resetValues(RangeList(index, index));
     } else {
-      setGroup(new GroupedRangeList(index, index, value));
+      setGroup(GroupedRangeList(index, index, value));
     }
   }
 
@@ -175,11 +180,11 @@
   /// (if required) the length up to (range.end + 1).
   void addGroup(GroupedRangeList<E> group) {
     if (group == null) {
-      throw new ArgumentError("group: $group");
+      throw ArgumentError('group: $group');
     }
 
     if (_fixedLength) {
-      throw new StateError("Unable to add the group into fixed list.");
+      throw StateError('Unable to add the group into fixed list.');
     }
 
     if (frozen) {
@@ -187,7 +192,7 @@
     }
 
     if (group.start < 0) {
-      throw new RangeError(group.start);
+      throw RangeError(group.start);
     }
 
     _setGroup(group);
@@ -205,28 +210,28 @@
   /// expanded (with default value) or shrunk to specified [range].
   List<GroupedRangeList<E>> getAlignedGroups(RangeList range) {
     if (range == null) {
-      throw new ArgumentError("range: $range");
+      throw ArgumentError('range: $range');
     }
 
-    var groups = getGroups(range).toList();
-    var length = groups.length;
+    final groups = getGroups(range).toList();
+    final length = groups.length;
     if (length == 0) {
-      return [new GroupedRangeList<E>(range.start, range.end, defaultValue)];
+      return [GroupedRangeList<E>(range.start, range.end, defaultValue)];
     }
 
-    var first = groups.first;
+    final first = groups.first;
     if (range.start > first.start) {
       groups[0] = first.intersection(range);
     } else if (range.start < first.start) {
-      var insertion =
-          new GroupedRangeList<E>(range.start, first.start - 1, defaultValue);
+      final insertion =
+          GroupedRangeList<E>(range.start, first.start - 1, defaultValue);
       groups.insert(0, insertion);
     }
 
-    var last = groups.last;
+    final last = groups.last;
     if (range.end > last.end) {
-      var addition =
-          new GroupedRangeList<E>(last.end + 1, range.end, defaultValue);
+      final addition =
+          GroupedRangeList<E>(last.end + 1, range.end, defaultValue);
       groups.add(addition);
     } else if (range.end < last.end) {
       groups[groups.length - 1] = last.intersection(range);
@@ -240,19 +245,18 @@
   /// which being expanded (with default value) or shrunk to specified [range].
   List<GroupedRangeList<E>> getAllSpace(RangeList range) {
     if (range == null) {
-      throw new ArgumentError("range: $range");
+      throw ArgumentError('range: $range');
     }
 
-    var groups = <GroupedRangeList<E>>[];
+    final groups = <GroupedRangeList<E>>[];
     GroupedRangeList<E> previous;
-    for (var group in getAlignedGroups(range)) {
+    for (final group in getAlignedGroups(range)) {
       if (previous != null) {
-        var start = previous.end + 1;
-        var delta = group.start - start;
+        final start = previous.end + 1;
+        final delta = group.start - start;
         if (delta > 0) {
           // Adds the synthetic group
-          groups.add(
-              new GroupedRangeList<E>(start, group.start - 1, defaultValue));
+          groups.add(GroupedRangeList<E>(start, group.start - 1, defaultValue));
         }
       }
 
@@ -269,8 +273,8 @@
       return _groups.getRange(0, _groups.length);
     }
 
-    var length = _groups.length;
-    var left = _findNearestIndex(0, length, range.start);
+    final length = _groups.length;
+    final left = _findNearestIndex(0, length, range.start);
     var firstIndex = -1;
     var lastIndex = -1;
     for (var i = left; i < length; i++) {
@@ -296,8 +300,8 @@
   /// Returns the indexes of the elements with a value.
   Iterable<int> getIndexes() {
     Iterable<int> generator() sync* {
-      for (var group in groups) {
-        var end = group.end;
+      for (final group in groups) {
+        final end = group.end;
         for (var i = group.start; i <= end; i++) {
           yield i;
         }
@@ -311,11 +315,11 @@
   /// length down to (range.start).
   void removeValues(RangeList range) {
     if (range == null) {
-      throw new ArgumentError("range: $range");
+      throw ArgumentError('range: $range');
     }
 
     if (_fixedLength) {
-      throw new StateError("Unable to remove the values from a fixed list.");
+      throw StateError('Unable to remove the values from a fixed list.');
     }
 
     if (frozen) {
@@ -323,7 +327,7 @@
     }
 
     if (range.start < 0) {
-      throw new RangeError(range.start);
+      throw RangeError(range.start);
     }
 
     _resetValues(range);
@@ -344,7 +348,7 @@
   /// Resets the values in the specified [range] to the default values.
   void resetValues(RangeList range) {
     if (range == null) {
-      throw new ArgumentError("range: $range");
+      throw ArgumentError('range: $range');
     }
 
     if (frozen) {
@@ -352,11 +356,11 @@
     }
 
     if (range.start < 0 || range.start >= _length) {
-      throw new RangeError(range.start);
+      throw RangeError(range.start);
     }
 
     if (range.end >= _length) {
-      throw new RangeError(range.end);
+      throw RangeError(range.end);
     }
 
     _resetValues(range);
@@ -365,7 +369,7 @@
   /// Sets the values ​​in accordance with the specified [group].
   void setGroup(GroupedRangeList<E> group) {
     if (group == null) {
-      throw new ArgumentError("group: $group");
+      throw ArgumentError('group: $group');
     }
 
     if (frozen) {
@@ -373,11 +377,11 @@
     }
 
     if (group.start < 0 || group.start >= _length) {
-      throw new RangeError(group.start);
+      throw RangeError(group.start);
     }
 
     if (group.end >= _length) {
-      throw new RangeError(group.end);
+      throw RangeError(group.end);
     }
 
     _setGroup(group);
@@ -387,14 +391,14 @@
   /// sets the length to 0.
   void trim() {
     if (_fixedLength) {
-      throw new StateError("Unable to trim a fixed list.");
+      throw StateError('Unable to trim a fixed list.');
     }
 
     if (frozen) {
       _errorModificationNotAllowed();
     }
 
-    var groupCount = _groups.length;
+    final groupCount = _groups.length;
     if (groupCount == 0) {
       _length = 0;
     } else {
@@ -403,7 +407,7 @@
   }
 
   void _errorModificationNotAllowed() {
-    throw new StateError("Unable to modify the frozen list.");
+    throw StateError('Unable to modify the frozen list.');
   }
 
   int _findNearestIndex(int left, int right, int key) {
@@ -429,30 +433,30 @@
   }
 
   void _resetValues(RangeList range) {
-    var rangeStart = range.start;
-    var rangeEnd = range.end;
-    var length = _groups.length;
-    var left = _findNearestIndex(0, length, range.start);
+    final rangeStart = range.start;
+    final rangeEnd = range.end;
+    final length = _groups.length;
+    final left = _findNearestIndex(0, length, range.start);
     var count = 0;
-    var newGroups = <GroupedRangeList<E>>[];
+    final newGroups = <GroupedRangeList<E>>[];
     for (var i = left; i < length; i++) {
-      var current = _groups[i];
-      var start = current.start;
+      final current = _groups[i];
+      final start = current.start;
       if (start > rangeEnd) {
         break;
       }
 
-      var intersect = current.intersect(range);
+      final intersect = current.intersect(range);
       if (intersect) {
-        var end = current.end;
-        var key = current.key;
+        final end = current.end;
+        final key = current.key;
         if (start < rangeStart) {
-          var newGroup = new GroupedRangeList<E>(start, rangeStart - 1, key);
+          final newGroup = GroupedRangeList<E>(start, rangeStart - 1, key);
           newGroups.add(newGroup);
         }
 
         if (end > rangeEnd) {
-          var newGroup = new GroupedRangeList<E>(rangeEnd + 1, end, key);
+          final newGroup = GroupedRangeList<E>(rangeEnd + 1, end, key);
           newGroups.add(newGroup);
         }
       } else {
@@ -467,15 +471,15 @@
   }
 
   void _setGroup(GroupedRangeList<E> group) {
-    var groupKey = group.key;
-    var length = _groups.length;
+    final groupKey = group.key;
+    final length = _groups.length;
     if (length == 0) {
       _groups.add(group);
       return;
     }
 
-    var groupStart = group.start;
-    var lastEnd = _groups[length - 1].end;
+    final groupStart = group.start;
+    final lastEnd = _groups[length - 1].end;
     int left;
     if (groupStart == lastEnd + 1) {
       left = length - 1;
@@ -486,43 +490,43 @@
       left = _findNearestIndex(0, length, group.start);
     }
 
-    var groupEnd = group.end;
+    final groupEnd = group.end;
     var count = 0;
-    var newGroups = <GroupedRangeList<E>>[];
+    final newGroups = <GroupedRangeList<E>>[];
     for (var i = left; i < length; i++) {
-      var current = _groups[i];
-      var start = current.start;
+      final current = _groups[i];
+      final start = current.start;
       if (start > groupEnd + 1) {
         break;
       }
 
-      var end = current.end;
-      var key = current.key;
-      var intersect = current.intersect(group);
+      final end = current.end;
+      final key = current.key;
+      final intersect = current.intersect(group);
       if (intersect) {
         if (start < groupStart) {
           if (_equals(key, groupKey)) {
-            group = new GroupedRangeList<E>(start, groupEnd, groupKey);
+            group = GroupedRangeList<E>(start, groupEnd, groupKey);
           } else {
-            var newGroup = new GroupedRangeList<E>(start, groupStart - 1, key);
+            final newGroup = GroupedRangeList<E>(start, groupStart - 1, key);
             newGroups.add(newGroup);
           }
         }
 
         if (end > groupEnd) {
           if (_equals(key, groupKey)) {
-            group = new GroupedRangeList<E>(groupStart, end, key);
+            group = GroupedRangeList<E>(groupStart, end, key);
           } else {
-            var newGroup = new GroupedRangeList<E>(groupEnd + 1, end, key);
+            final newGroup = GroupedRangeList<E>(groupEnd + 1, end, key);
             newGroups.add(newGroup);
           }
         }
       } else {
         if (_equals(key, groupKey)) {
           if (groupStart == end + 1) {
-            group = new GroupedRangeList<E>(start, groupEnd, key);
+            group = GroupedRangeList<E>(start, groupEnd, key);
           } else if (start == groupEnd + 1) {
-            group = new GroupedRangeList<E>(groupStart, end, key);
+            group = GroupedRangeList<E>(groupStart, end, key);
           } else {
             newGroups.add(current);
           }
diff --git a/lists/lib/src/step_list.dart b/lists/lib/src/step_list.dart
index 91dec1b..7baaa56 100755
--- a/lists/lib/src/step_list.dart
+++ b/lists/lib/src/step_list.dart
@@ -11,18 +11,18 @@
 
   StepList(this.start, this.end, [int step]) {
     if (start == null) {
-      throw new ArgumentError("start: $start");
+      throw ArgumentError('start: $start');
     }
 
     if (end == null) {
-      throw new ArgumentError("end: $end");
+      throw ArgumentError('end: $end');
     }
 
     if (step == 0) {
-      throw new ArgumentError("step: $step");
+      throw ArgumentError('step: $step');
     }
 
-    var count = end - start;
+    final count = end - start;
     if (step == null) {
       if (count > 0) {
         _step = 1;
@@ -42,33 +42,38 @@
   }
 
   /// Returns the length of list.
+  @override
   int get length => _length;
 
   /// Sets the length of list.
+  @override
   set length(int length) {
-    throw new UnsupportedError("length=");
+    throw UnsupportedError('length=');
   }
 
   /// Returns the step.
   int get step => _step;
 
+  @override
   int operator [](int index) {
     if (index == null) {
-      throw new ArgumentError("index: $index");
+      throw ArgumentError('index: $index');
     }
 
     if (index < 0 || index >= _length) {
-      throw new RangeError(index);
+      throw RangeError(index);
     }
 
     return start + step * index;
   }
 
+  @override
   void operator []=(int index, int value) {
-    throw new UnsupportedError("operator []=");
+    throw UnsupportedError('operator []=');
   }
 
   /// Returns true if list contains the [value]; otherwise false.
+  @override
   bool contains(value) {
     if (value == null || value is! int) {
       return false;
@@ -78,8 +83,8 @@
       return value == start;
     }
 
-    var position = (value as int) - start;
-    var index = position ~/ step;
+    final position = (value as int) - start;
+    final index = position ~/ step;
     if (index >= 0 && index < _length) {
       if (position % index == 0) {
         return true;
@@ -90,11 +95,12 @@
   }
 
   /// Returns the string representation of range.
+  @override
   String toString() {
     if (step > 0) {
-      return "[$start..$end; +$step]";
+      return '[$start..$end; +$step]';
     } else {
-      return "[$start..$end; $step]";
+      return '[$start..$end; $step]';
     }
   }
 }
diff --git a/lists/lib/src/wrapped_list.dart b/lists/lib/src/wrapped_list.dart
index ba98fc2..26acca4 100755
--- a/lists/lib/src/wrapped_list.dart
+++ b/lists/lib/src/wrapped_list.dart
@@ -5,26 +5,31 @@
 
   WrappedList(List<E> source) {
     if (source == null) {
-      throw new ArgumentError("source: $source");
+      throw ArgumentError('source: $source');
     }
 
     _source = source;
   }
 
   /// Returns the length of list.
+  @override
   int get length => _source.length;
 
   /// Sets the length of list.
+  @override
   set length(int length) {
-    throw new UnsupportedError("length=");
+    throw UnsupportedError('length=');
   }
 
+  @override
   E operator [](int index) => _source[index];
 
+  @override
   void operator []=(int index, E value) {
-    throw new UnsupportedError("operator []=");
+    throw UnsupportedError('operator []=');
   }
 
   /// Returns the string representation of range.
+  @override
   String toString() => _source.toString();
 }
diff --git a/lists/pubspec.yaml b/lists/pubspec.yaml
index 845eef9..2f35a95 100755
--- a/lists/pubspec.yaml
+++ b/lists/pubspec.yaml
@@ -1,11 +1,10 @@
 name: lists
-version: 0.1.3
-author: Andrew Mezoni <andrew.mezoni@gmail.com>
+version: 0.1.4
 description: Collection of the lists (BitList, FilledList, GroupedRangeList, ListPointer, RangeList, SparseBoolList, SparseList, StepList, WrappedList).
 homepage: https://github.com/mezoni/lists
 environment:
   sdk: '>=1.0.0 <3.0.0'
 dependencies:  
 dev_dependencies:
-  pedantic: any
+  pedantic: ^1.9.0
   test: any