Fix camera positioning so that it is in between avatar's eyes. Plus
some code clean up.
Merge remote-tracking branch 'upstream/master'

Conflicts:
	interface/src/Application.cpp
	interface/src/avatar/Head.cpp
Remove extra parenthesis.
Switch back to avatar.getEyePosition() rather than
avatar.getHead().getEyePosition() because of mysterious lag.
Merge remote-tracking branch 'upstream/master'
Merge pull request #765 from LionTurtle/master

Fix camera positioning so that it is in between avatar's eyes. Plus some code clean up.