Remove additional THREE.AmbientLight objects in a scene.  Fixes #2669
Strip imported scene's ambient lights.  Refs #2669
Merge branch 'integration' into branch/command-center-ambient-color
Respond to code review, fixed indent.  Refs #2669
0.6.16 Sprint Rollover
Merge branch 'development' of http://github.com/virtual-world-framework/vwf into development
Update spacing on readme.md file for the 'Getting Started' documentation page.

Fixes #2716.
Fix bad path for command-center artwork.
Merge pull request #21 from virtual-world-framework/branch/readme-spacing

Update spacing on readme.md file for the 'Getting Started' documentation. 

Fixes #2716.
Merge pull request #22 from virtual-world-framework/branch/2d-editor

2D Editor Example Application
Add multi-nav-test app to debug Redmine #2671. Refs #2671
Fix to always use positive animationRate and fps when using three.js objects to control animations
Add new property animationDirection to determine if the animation plays forward or back.

Refs #2801
Revert "Add new property animationDirection to determine if the animation plays forward or back."

This reverts commit 95b0174ffe3a53ed8ad283ba75265b51821bdccf.
Add flag to the Threejs View Driver to check if there is an outstanding getProperty request on 'userObject'.  This eliminates the issue of creating multiple user nodes in gotProperty (not currently implemented through a callback). Fixes #2671
Tests Redmine Issue #2671.  Refs #2671
Remove unneeded testcase for #2671.  Refs #2671
Merge pull request #29 from virtual-world-framework/branch/multi-nav-test

Fixes Z-shift observed bug where vwf.getNode() could falsely trigger the creation of additional nav objects, #2671.
Updates the 'turn the radio on' step of the lesson to listen for
control value updated events rather than pointer up events. Avoids
any potential 'mouse pointer up, didn't count as actually turning
on radio, but did count as completing the lesson' mismatches.

Fixes #2590.
Fix bug linking the animationRate to the threejs driver.
Deprecate fps property, and add new read-only property animationFPS that only comes from the collada model.
Add new animationFrameCount and animationFrame properties.

Refs #2801