Working on reorientation.
Merge branch 'master' of https://github.com/worklist/hifi
More work on righting based on gravity vector.
Merge branch 'master' of https://github.com/worklist/hifi
Merge branch 'master' of https://github.com/worklist/hifi
Fixed threading issue with Environment, more work on avatar righting.
Restore "floor."
Merge branch 'master' of https://github.com/worklist/hifi
Fix the spacing, and while we're at it, change tabs to spaces.
Merge pull request #389 from ey6es/master

Fixed threading issue with Environment, some progress on orienting based on gravity (still a work in progress).