changed iOS CameraSource so UIApplication.statusBarOrientation is used instead of UIDevice.orientation for setting the video capture orienation. This avoids problems with faceup and facedown orientations
added a parameter to CameraSource (and VCSimpleSession) that determines whether interface or device orientation changes will be used for adapting the video capture orientation
using interface orientation as fallback when device orientation is faceUp or faceDown
using interface orientation as fallback when device orientation is unknown
Merge pull request #43 from germanSancho/statusBarOrientation

changed iOS CameraSource so UIApplication.statusBarOrientation is used i...