OpenGL-ES converstion
Specific device options for pandora, gcw, gph
Remove old tasks
Update CHANGELOG
Bump version to 5.23
Merge branch 'master' of github.com:yquake2/yquake2
Merge remote-tracking branch 'opengles/master'

This integrates the backends for the pandora, gcw and gph written by
Scott "Pickle" Smith. Only the code itself is supplied, but no build
system integration.
Use proper API to get pointers to OpenAL EFX extensions
Fix compiling under Visual C++
Stop Visual C++ to complain about uninitialized variable
Do not update mouse cursor position when paused, in menu, etc
Enable TGA sky textures when retexturing is disabled
Fix compiling under Visual C++ when OggVorbis playback enabled
Remove static keyword on some variables (these actually not static)
Caused by 1e52d35e84c90504eb72b671b76f2afbcbb07cea
Merge pull request #43 from bibendovsky/master

Fixies for OpenAL, Visual C++ compiling, retexturing, mouse input
Merge branch 'master' of github.com:yquake2/yquake2