diff --git a/MANIFEST.in b/MANIFEST.in
new file mode 100644
index 0000000..c41487f
--- /dev/null
+++ b/MANIFEST.in
@@ -0,0 +1 @@
+include README LICENSE
diff --git a/Makefile b/Makefile
index ca53bd7..4536e72 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 
-.PHONY: default build force install test clean
+.PHONY: default build force install test dist-src clean
 
 PYTHON=/usr/bin/python
 TEST=
@@ -17,6 +17,9 @@
 test: build
 	${PYTHON} tests/test_build.py ${TEST}
 
+dist-src:
+	${PYTHON} setup.py sdist --formats=zip,gztar
+
 clean:
 	${PYTHON} setup.py clean -a
 
diff --git a/lib/yaml/constructor.py b/lib/yaml/constructor.py
index 0660f54..1fc3b7d 100644
--- a/lib/yaml/constructor.py
+++ b/lib/yaml/constructor.py
@@ -161,9 +161,7 @@
         return None
 
     bool_values = {
-        u'y':       True,
         u'yes':     True,
-        u'n':       False,
         u'no':      False,
         u'true':    True,
         u'false':   False,
diff --git a/lib/yaml/resolver.py b/lib/yaml/resolver.py
index e3706c5..a3c041e 100644
--- a/lib/yaml/resolver.py
+++ b/lib/yaml/resolver.py
@@ -93,7 +93,7 @@
 
 Resolver.add_detector(
         u'tag:yaml.org,2002:bool',
-        re.compile(ur'''^(?:y|Y|yes|Yes|YES|n|N|no|No|NO
+        re.compile(ur'''^(?:yes|Yes|YES|n|N|no|No|NO
                     |true|True|TRUE|false|False|FALSE
                     |on|On|ON|off|Off|OFF)$''', re.X),
         list(u'yYnNtTfFoO'))
diff --git a/setup.py b/setup.py
index e6c1652..e1f12d1 100644
--- a/setup.py
+++ b/setup.py
@@ -1,10 +1,10 @@
 
 NAME = 'PyYAML3000'
 VERSION = '0.1'
-DESCRIPTION = "YAML parser (and emitter)"
+DESCRIPTION = "The next generation YAML parser for Python"
 AUTHOR = "Kirill Simonov"
 AUTHOR_EMAIL = 'xi@resolvent.net'
-LICENSE = "BSD"
+LICENSE = "MIT"
 
 from distutils.core import setup
 
diff --git a/tests/data/bool.data b/tests/data/bool.data
index 3f28955..0988b63 100644
--- a/tests/data/bool.data
+++ b/tests/data/bool.data
@@ -1,4 +1,4 @@
-- y
+- yes
 - NO
 - True
 - on
diff --git a/tests/data/construct-bool.data b/tests/data/construct-bool.data
index 2a8f2e6..e751222 100644
--- a/tests/data/construct-bool.data
+++ b/tests/data/construct-bool.data
@@ -1,4 +1,4 @@
-canonical: y
+canonical: yes
 answer: NO
 logical: True
 option: on
diff --git a/tests/test_constructor.py b/tests/test_constructor.py
index e3895fa..794d3e4 100644
--- a/tests/test_constructor.py
+++ b/tests/test_constructor.py
@@ -4,6 +4,10 @@
     import datetime
 except ImportError:
     pass
+try:
+    set
+except NameError:
+    from sets import Set as set
 
 from yaml import *
 
diff --git a/tests/test_errors.py b/tests/test_errors.py
index 74ba9f2..626b4e4 100644
--- a/tests/test_errors.py
+++ b/tests/test_errors.py
@@ -26,6 +26,7 @@
         #except ScannerError, exc:
         #except ParserError, exc:
         #except ComposerError, exc:
+        #except ConstructorError, exc:
             #print '.'*70
             #print "%s:" % exc.__class__.__name__, exc
             raise
@@ -39,14 +40,14 @@
             resolver = Resolver(composer)
             constructor = Constructor(resolver)
             return list(constructor)
-        #except YAMLError, exc:
+        except YAMLError, exc:
         #except ScannerError, exc:
         #except ParserError, exc:
         #except ComposerError, exc:
-        except ConstructorError, exc:
-            print '.'*70
-            print "%s:" % filename
-            print "%s:" % exc.__class__.__name__, exc
+        #except ConstructorError, exc:
+            #print '.'*70
+            #print "%s:" % filename
+            #print "%s:" % exc.__class__.__name__, exc
             raise
 
 TestErrors.add_tests('testErrors', '.error-message')