updated transform controls
Merge branch 'dev' of https://github.com/arodic/three.js into dev
Merge branch 'dev' of https://github.com/mrdoob/three.js into dev
Merge remote-tracking branch 'upstream/master' into dev
optimized transform controls, removed redundant code
fixed snapping bug
Merge branch 'dev' of https://github.com/arodic/three.js into dev
TransformControls: Using null instead of undefined.