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.
Merge pull request #64 from icotting/60_lazy_load

Edit User Collection - Lazy Loading