Don't enable ARS if the rotation being set is IDENTITY
Don't enable ARS if the rotation being set is IDENTITY

This also prevents enabling ARS for Windows that are cloned.

--HG--
branch : v0-8

cbeck88/cegui-mirror-two,cbeck88/cegui-mirror-two,cbeck88/cegui-mirror-two,cbeck88/cegui-mirror-two,cbeck88/cegui-mirror-two