Stop requiring Weston as a build dependency.

This reverts the dependency on Weston 1.4.0 for building Ozone-Wayland
introduced in commit e57ab035f78d82117e1f1c7ec1459eb0c21deb22.

While it is OK to depend on Wayland and other libraries and even require
specific versions of them, it does not make much sense to do the same
for Weston, since it is not included or linked to by anything during the
build.
Merge pull request #244 from rakuco/no-build-dep-on-weston

Stop requiring Weston as a build dependency.
Relax Wayland version checks.

Instead of insisting Wayland to be at a specific version (1.4.0 at this
time of writing), make it a ">=" check.

This is necessary for Tizen, which has recently moved to Wayland 1.5.0,
and it also makes the lives of most developers easier as they can use a
version closer to the bleeding edge as well.

Since we now support Wayland versions newer than 1.4.x, a note has been
added to the README to mention XDG Shell support only works with the 1.4
series.
Merge pull request #247 from rakuco/relax-wayland-version-check

Relax Wayland version checks.
Revert "Temporarily disable HWA decoding support."

This reverts commit e8ee3471a56a1c23e86687d9d90e59564c7ffb44.
Update xdg-shell for Weston 1.5

The protocol has heavily changed, update it so it builds and works
with the newest Weston 1.5 release.

Add some README instructions.

XWALK-1382

Signed-off-by: Manuel Bachmann <manuel.bachmann@open.eurogiciel.org>
Update README instructions for xdg_shell.
Fixed the compile error

BUG-240

the ozone/media uses mesa header GL/gl.h. However, video.gypi didn't add it
in the include_dirs. So, that will result in 'fatal error: GL/gl.h: No such
file or directory'. Meanwhile, it will fix BUG-240
Update README.md

Fix the minimum supported Wayland version.
Update README.md

Fix typo.
Temporarily remove ozone dependency for gl

The old implementation will result that the third party window system can't depend on ui/gl
because of cycling dependency. So temporarily remove ozone dependency for gl.

BUG=240
Merge pull request #246 from qjia7/master

Fixed the compile error
Merge pull request #249 from qjia7/patch

Temporarily remove ozone dependency for gl
Fix crash when unplug the mouse with pointer in the window.

We should not only call OnSetCapabilities after we create input
but also call OnSetCapabilities before we destroy them.

BUG=250
Add myself to the AUTHORS file
Merge pull request #252 from qjia7/master

Add myself to the AUTHORS file
Merge pull request #251 from CooderIan/fix_pointer_crash

Fix crash when unplug the mouse with pointer in the window.
Update README.md.

Add the following information :
- distro tools and development packages needed ;
- distro 32-bit compatibility package needed (for 64-bit) ;
- how to run "gyp_chromium" to update build files after applying patches ;
- basic build step troubleshooting.

Signed-off-by: Manuel Bachmann <manuel.bachmann@open.eurogiciel.org>
Merge pull request #255 from Tarnyko/master

Update README.md.
Add myself to the AUTHORS file.