Added deviceorientation version

This is NOT to be merged with master. The branch is a version of your three.js Photo Sphere that uses a phone's device orientation to view the photo sphere. Just load it up and move the phone around, sort of like a port hole.

The reason you don't want to merge this with master is that it replaces the OrbitControls on any device that has an accelerometer, which includes many laptops (like the MacBook Pro). Just for fun and demo purposes. Feel free to publish this branch wherever you like. Cheers.