Removed duplicate code related to mapping degrees to orientation values, using the Screen function now.
Overrided the window.shouldRotateToOrientation function to always return false and have the new orientation code to support legacy apps.
Added allowed orientations in the modal open API.
removed alerts from the success callback on allowedOrientation API calls.. this causes issues since iOS has to display the alert before it has changed the screen orientation and that break thinks.
Merge branch 'topic/allowedOrientation_refactory' of github.com:pentateu/steroids-js into topic/allowedOrientation_refactory

Conflicts:
	src/models/Modal.coffee