Sphere/box collisions for voxels, various utility functions.
Capsule/box collisions.
Fix for NaN.
Merge branch 'master' of https://github.com/worklist/hifi
Fixed Linux build error and a warning on call to Avatar.simulate, moved grid
size constant to world.h and made gravity bounds match.
Merge pull request #437 from ey6es/master

Sphere/box and capsule/box collisions for voxels; allows us to slide along and stand on voxels.  Also a couple build fixes.
move audioLoudness to HeadData
Merge pull request #435 from Ventrella/master

Integrated mohawk code, and did some cleanup and improvements on avatar
Merge remote-tracking branch 'upstream/master' into mouth-render
resolve conflict on merge with upstream master
Merge pull request #439 from birarda/mouth-render

move _audioLoudness to HeadData
fix silent audio on client
type squish in Audio.cpp
Merge pull request #440 from birarda/master

fix silent audio on client
fix the enum in AABox, fix a warning in Head
Merge pull request #441 from birarda/master

fix a couple of warnings
fixed third person shift bug
Merge remote-tracking branch 'upstream/master'
merge