Fixed export to camera roll on iOS
Oups. Bad last commit. Fixed the export once for all with this
Added affine transform on the exported video.
Merge commit '40df96286f501793f179dd630da90251a882eac4'

Conflicts:
	SCAudioVideoRecorder.xcodeproj/project.pbxproj
	SCAudioVideoRecorder/SCAudioVideoRecorder.m
	SCAudioVideoRecorderExampleMac/SCAppDelegate.m