Fixes bug where animation duration and fps calculations were being
performed on animation meshes for objects without animation meshes,
leading to broken transformTo's and similar behavior. Fixes bug
by adding check for zero length arrays of animatedMesh.

Fixes #2675.
Replace Cesium r19 to r20
Update changelog for 0.6.16.

Refs #2837.
0.6.17 Version Rollover
Updates color picker interfaces to set color when they are closed,
even if the 'select' button has not been pressed.

Fixes #2662.
Merge branch 'development' into branch/transform-bug

Conflicts:
	support/client/lib/vwf/model/threejs.js
Check to make sure disableInputs is false before trying to move the nav object

Refs #2633
Merge pull request #40 from virtual-world-framework/branch/navigation-disableinputs-fix

Branch/navigation disableinputs fix
Replaces channel knob material with reference to volume knob material
so that they match.
Update webrtc configuration file to not use threejs driver, since it's not needed.
Merge pull request #37 from virtual-world-framework/branch/cesiumR20

Branch/cesium r20
Merge pull request #42 from virtual-world-framework/branch/webrtc-config

Update webrtc configuration to remove threejs driver dependency. Fixes #2877.
Remove nodriver from configuration. Because it has specified webrtc, it will not default to threejs.

Refs #2877.
Adds the all of the files from the latest build of Cesium

Fixes 2876
Merge pull request #43 from virtual-world-framework/branch/cesiumFix

Adds the all of the files from the latest build of Cesium
Update to three.js r61

Copied from https://github.com/virtual-world-framework/three.js.git
Revision 8471bc8564fc2bf8b3360460bf20db0c630168df

Refs #2865
Merge pull request #45 from virtual-world-framework/branch/threejs-61

Branch/threejs 61
Remove command-center-threejs per #2467

/cc @bcbarsness
Merge pull request #46 from virtual-world-framework/branch/remove-threejs-command-center

Remove threejs command center
Merge branch 'development' into branch/persistence-listsaves