Fixed a bug where when saving a still a spurious entry is added to resources.
Added a tooltip to stills.
Stills get saved to an iOS folder.
Fixed not being able to break links to preview images.
Don't generate stills when saving a SNU.
Adjusted indentation
SnuHelper can do updates from existing domain objects, not just the view.
Merge pull request #25 from dreisch/stills_take_2

Stills take 2