Merge pull request #442 from Ventrella/master

camera bug
Merge pull request #443 from Ventrella/master

AVATAR_FACING_THRESHOLD
Merge pull request #444 from Ventrella/master

fixed bug causing camera to not get updated position of other avatar
Merge pull request #446 from Ventrella/master

fixed some glitches in avatar render alpha transition between 3p and 1p
one line fix for translucent head
Merge remote-tracking branch 'upstream/master' into one-liner
Merge pull request #447 from PhilipRosedale/one-liner

fix for translucent head
fix to head transparency
Merge remote-tracking branch 'upstream/master'