removed scaling; images saved to camera roll should not be distorted
removed camera functionality from new gem controller; image is saved after gem is created; gem is not created before save is clicked
added getMetaForInfo
images saved to camera roll use metadata (for timestamp, orientation)
save to camera roll is toggled through settings
added background stay alive helper; imageURL is added back to gems when saved

uses gem.imageURL instead of pfObject
Merge pull request #28 from mitrenegade/cameraRollFixes

Camera roll fixes