Merge pull request #967 from ey6es/blendface

Fix for face model sending.
Merge pull request #968 from ey6es/blendface

Another slight face fix: clear the face when set, before loading the new...
Merge branch 'master' of https://github.com/worklist/hifi into blendface
Fixed bug in decoding: newer versions of Qt streaming use whatever precision
the stream is set at for both floats and doubles.