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