Compressed noisy overlay / deleted colored noisy backgrounds

Conflicts:
	public/images/noisy_overlay.png
Added fancy form for editing a photo
Extended model to contain behaviour
Service now returns model instances
Made jslint whine (less)
Named inputs for date and time
Added failing test for saving edit
Made test pass
Fixed width for image preview
Added title in edit mask
Merge branch 'feature/edit_picture' into develop