SLDevice adds support for rotating the device. Adds integration test for this.
Prefix C function with SL
Factor out 7 into shared constant in SLDeviceTest
Renames `rotateToOrientation:` to `setOrientation:` to match UIAutomation. Changes the documentation to match that of `UIATarget`, and notes that the current orientation can be accessed using the standard UIDevice method
Merge pull request #15 from MaxGabriel/master

Adds support for rotating the device