Begins issue 93.  The callback function (which does the cue mixing) needed to be optimized in order for the logic to work.  However, by multiple the cue amplitudes by sqrt(X/100.0), it allows the cue sample to have its loudness set to roughly X%.  The new mixing logic should work more efficiently as well, with less math.
Begins issue 93.  The callback function (which does the cue mixing) needed to be optimized in order for the logic to work.  However, by multiple the cue amplitudes by sqrt(X/100.0), it allows the cue sample to have its loudness set to roughly X%.  The new mixing logic should work more efficiently as well, with less math.

git-svn-id: 80300035c0945e1dead713df30ec139394dadc1f@393 1b2aedea-9eff-cdc0-263b-b87a75789507

cincodenada/editor-on-fire,cincodenada/editor-on-fire,cincodenada/editor-on-fire,cincodenada/editor-on-fire