Don't render avatars until they've been simulated, init before first simulate.
Closes #2262.
Get rid of unused, expensive "average color" nonsense.
Merge branch 'master' of https://github.com/highfidelity/hifi
Turn off mipmaps.  Performance is actually substantially better without them.
Merge branch 'master' of https://github.com/highfidelity/hifi
Since the bucky balls are showing up in the hot spots list when profiling,
don't simulate them if they're disabled.
Merge branch 'master' of https://github.com/highfidelity/hifi
Merge pull request #2269 from ey6es/master

Fix for white flashes when loading avatars, performance improvements.