Added example for reference.
Tweaked colour in example.
Removed kruft
Refactoring
Added basic gulpfile
Example refactoring
Refactoring
Can start rotation from arbitrary point
Flipped Y axis
Kinda working version.
Posting WIP
Cube now rotating as expected.
Added some logging to better understand the projectOnTrackball
Moved all position calculation into mouseMove
Updated Rotation.js and removed example / working files.