New orbit and pan controls version

For r58 on, use as you will.
Explain new file.
Improved orbit and pan controls.

Supports orthographic pan correctly, uses multitouch, better drop-in
replacement for TrackballControls.
added r56 three.js file
remove unneeded normalizations
whitespace cleanup

spaces to tabs, and remove trailing whitespace
comment cleanup
Added comments to Coordinates.js
cleanup: use better defaults code
Merge pull request #8 by Eric