waffle: Bump version to 1.4.2
doc: Add waffle-1.4.2 release notes

Signed-off-by: Chad Versace <chad@kiwitree.net>
cmake: Find and set include path for wglext.h

GL/*glext.h is not provided by the system (be it MinGW or MSVC), so its
path must be specified separately.

I used GLEXT_INCLUDE_DIR, which is the name also used for Piglit, so
that existing CMake initial caches might already provide it.

Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
.mailmap: Add chad@kiwitree.net

Signed-off-by: Chad Versace <chad.versace@linux.intel.com>
doc/html/man: Remove duplicate link to manpage waffle_init(3)

Signed-off-by: Chad Versace <chad.versace@linux.intel.com>
Merge branch 'maint-1.4' into master

* maint-1.4:
  doc/html/man: Remove duplicate link to manpage waffle_init(3)
  doc: Add waffle-1.4.2 release notes
  waffle: Bump version to 1.4.2

Conflicts:
  Android.mk
  cmake/Modules/WaffleDefineVersion.cmake
    Version bump conflicts.
waffle: Bump version to 1.5.0

Signed-off-by: Chad Versace <chad.versace@linux.intel.com>
doc: Add draft release notes for Waffle 1.5.0

Signed-off-by: Chad Versace <chad.versace@linux.intel.com>