Feature Request: Only allow anti-clockwise rotation

[intrinseca]

The button for clockwise rotation appears over the 'back' button at the top left of lots of apps - I frequently hit this by accident when using my phone one-handed as I tilt it to reach the back button. It would be good to be able to say "only support anti-clockwise rotation" to disable this button.

[gabm]

Maybe we could enable/disable certain orientation options?!

.. also the threshold for activation of the icon could be configurable...