Added rotatable component.
Added example for rotatable component.
Fixed comments.
Merge commit 'b5a8b838ef308108f371a25a25e911280d536594' into #44-create-rotatable-component

Conflicts:
	build/glue.min.js
added rotation to example index
Merge pull request #53 from spilgames/#44-create-rotatable-component

Added rotatable component.