Merge pull request #59 from birarda/master

fix number of bytes per agent from avatar mixer
adjusted the ordering of porcessed in camera update method
Merge branch 'master' of https://github.com/worklist/hifi
added instrumentation to Orientation class to test for normalized and orthogonal vectors
Small tweaks to initial values for offset camera, so people can make sense of it
Merge pull request #60 from ZappoMan/view_frustum_work

Small tweaks to initial values for offset camera, so people can make sen...
consolidated some code in Head.cpp
Merge remote-tracking branch 'origin'
tested camera orthonormals
moved renderOrientstionDiretions to Utils
Adding testOrientationClass() to run unit tests on the orientation class.
Merge pull request #61 from ZappoMan/view_frustum_work

Adding testOrientationClass() to run unit tests on the orientation class
fix mutex movement when resizing AgentList vector