Added PhotoStack classes. Worked on KSDataLogger a bit, cleaning up the ALAsset code to also log all of the actual photos (the defaultRepresentations in _allPhotos). Also created a singleton method for the Assets Library to make sure it is only created and read from once. After this check-in, going to fork this repo into the first UX focused sprint.
Added some trivial text changes to test pushing to the new UXDemo1 branch