Added stricter checking for fmodex errors.
Demote a harmless message from llinfos to lldebugs when audio buffers are all consumed.
Initialize LLAudioBuffer member variables.
-LLAudioBuffer::mInUse is inited to TRUE to avoid buffers that just got created from getting deleted during the same frame by new audio sources further down the chain.
Looping sounds were always showing as 'Looping', even after they
stopped. Detection of stopped sounds is much better now.
Instead of only logging a sound as stopped when the audio source
is destroyed, we now detect whether or not it is associated with
an audio channel or not (the normal way to stop a sound is to set
the channel to NULL). This is still a bit fuzzy, since an
audio channel doesn't necessarily have to be playing, but states
where an audio source is associated with a non-playing audio channel
are only short temporary states that don't affect the usefulness
of the sound explorer.
-Fixed refrences to secondlife-bin.exe in build scripts
-Added ability to blacklist sounds through Sound Explorer floater.
-Added a missing color to the silver skin
