win_internal -> win.h (pulls in <windows.h>, with fixes afterwards) remove empty waio_internal and wsysdep Move source/sound license notice into source/sound/license.txt This was SVN commit r5044.
make include guards consistent. This was SVN commit r5040.
refs #138. Added SoundGroupMgr.h and .cpp, revised loading and clean up in SoundGroup class. This was SVN commit r4761.