Adding followThroughOverlappingAction script

The purpose of this project is to validate the principles of animation
into a procedural animation script. To test the theory, we implemented a
simple procedural arm swing animation that is both realtime and that
incorporates Disney's principles of animation (principle of Overlapping
Action and Follow Through). When applied to the arm swing, the
principles make the shoulder rotation lead the elbow rotation which will
lead the wrist rotation. Doing so results in an organic and life-like
effect.
Working on allowing different resolutions for heightfield heights and colors.
Minor code edits
More progress towards allowing different resolutions for height and color,
material, etc.
Fix for color bytes.
working on audio mixer muting
Merge branch 'master' of https://github.com/worklist/hifi
see yourself before/after moving
More resolution bits.
Another resolution fix.
Merge branch 'master' of https://github.com/worklist/hifi
support for locked property, some plumbing for textures property
set imageURL in ImageOverlay when imageURL is changed
use new lobby panel wall to avoid shimmer on frame edge
Merge pull request #3699 from birarda/lobby

use new lobby panel wall to avoid shimmer on frame edge
Merge branch 'master' of https://github.com/worklist/hifi
don't render Avatars when in lobby
Merge pull request #3698 from birarda/master

final tweak for linux unistd include
Merge pull request #3700 from birarda/lobby

don't render Avatars when in lobby
add a missing semicolon for @zappoman