Renamed UploadViewController to NDTTakeImageViewController. Created UploadController to aggregate data from the entire upload sequence. Added NDTDocument to act as a wrapper for an image and its properties.
CategoryViewController and TakeImageViewController sends information to UploadController.
Added button to take image. Fixed next button before if image taking/selection is cancelled.
Fixed TakeImageViewController and CategoryViewController getting references to UploadController.
Tab bar back button shows 'Back' instead of last view's title.
Got upload to work from the app side (not sure if Parse is actually storing it).
Switched to Cocoapods
Merged Upload and master