Add support for SamplerState.MaxMipLevel (WindowsGL and iOS)
Divided accelerometer values on Android by gravity to match XNA and iOS.
Merge pull request #2646 from flyingdevelopmentstudio/MaxMipLevel

Add support for SamplerState.MaxMipLevel (WindowsGL and iOS)
Merge pull request #2647 from Andreyul/accelerometer

Divided accelerometer values on Android by gravity to match XNA and iOS.