Fixed a bug in the generation of the site.cxml files. If a photo did not have any tags, that facet was left empty, which resulted inan improperly structured file which would not load into the pivotviewer.
Implemented the lazy load feature on the edit user collection page. Now only visible images load. Resolves #60.
Added the ability to save the current search/index background to user collections, which resolves #38. Also fixed a bug with saving user collections from the various pivot viewer pages.
Merge pull request #65 from icotting/38_save_searchpage_image

Save Search/Image background + bug fixes
Merge pull request #64 from icotting/60_lazy_load

Edit User Collection - Lazy Loading
Added the jquery ui elements necessary to have the slider on the photo wall page. Also implemented logic to shrink/hide the date labels, depending on the size of thumbnails.
Merged master.