Added support for RotationOffset, which the Lulu model uses.
Merge pull request #1089 from ey6es/master

Added support for RotationOffset, which the Lulu model uses.
Merge branch 'master' of github.com:worklist/hifi into assignment
add AudioMixerClientData to hold vector of PositionalAudioRingBuffer
add a stream identifier back to the audio injector