Fix Problem with uk Translation
Move kahrl to core devs in credits tab
Fix math for isBlockInSight.  Fixes #718 (client-side).
Fix memory leak in MeshUpdateThread
Only create SoundManager in main menu if USE_SOUND is true
Remove common from CMakeLists.txt, README.txt, lua-api.txt and buildwin.sh
Remove survival and build from CMakeLists.txt