Merge topic 'doc-xref-envvar'

63e0c16e3d Help: Link from CMAKE_<LANG>_FLAGS to <LANG>FLAGS environment variables
8acf46caf1 Utilities/Sphinx: Add role and directive for 'envvar' in CMake domain
7e532abc78 Utilities/Sphinx: Fix QtHelp generator identifiers

Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Robert Maynard <robert.maynard@kitware.com>
Merge-request: !1985
diff --git a/Source/CMakeVersion.cmake b/Source/CMakeVersion.cmake
index f32f2ee..7aadb3b 100644
--- a/Source/CMakeVersion.cmake
+++ b/Source/CMakeVersion.cmake
@@ -1,5 +1,5 @@
 # CMake version number components.
 set(CMake_VERSION_MAJOR 3)
 set(CMake_VERSION_MINOR 11)
-set(CMake_VERSION_PATCH 20180419)
+set(CMake_VERSION_PATCH 20180420)
 #set(CMake_VERSION_RC 1)