Fix for OS X; the structure wasn't being zero-initialized as I expected.
Merge pull request #390 from ey6es/master

Fix for OS X structure initialization.
Disable the righting for now, as well as the "floor" (whose presence makes us
slide, since the gravity vector isn't pointing straight down).
Merge pull request #391 from ey6es/master

Disable the righting for now, as well as the flat "floor" (to prevent sliding).
return Avatar Head by reference so setters actually do something
space out if
remove a debug line from setHeadFromGyros
Merge pull request #392 from birarda/oculus

fix broken head rotation set based on copy return
remove setter for isInjectingAudio - shouldn't be set externally