update headMove to have optional concept of a room that we cannot escape, update and rename butterflies script
remove renamed script
fix stuck drive keys for Avatar when modifier released
Merge pull request #3394 from birarda/fix-stuck-drive-key

fix for avatar drive keys
Merge branch 'master' of https://github.com/worklist/hifi
remove debug print
moved Extents to shared
improve constness for operators on PropertyFlags<>
handy conversions between AABox, AACube, and Extents
remove calls to calculateRotatedExtents() use Extents.rotate() instead
fix for drive key clear enumeration
use prefix and not postfix operator
Merge pull request #3397 from birarda/fix-stuck-drive-key

fix for MyAvatar save crash
Merge pull request #3395 from PhilipRosedale/master

Updated move and butterfly scripts, entity renderer uses glutCube to temporarily fix crash
Merge pull request #3396 from ZappoMan/someCleanup

Some cleanup
Merge pull request #3401 from chansensturm/audio-noise

New stereo audio panning object
new head penumbra gain calculations
disable input gain/mute