Added: Statics for JQuery Treeselect

Statics for the jquery tree ui are added. This is, at the moment, for demo purposes on the development db, but may be used in the future.
Added: Temporary Template for Uploads

A prototype template for uploading pieces is added, again for the sake of demo. Most of the code from this will be probably be kept.

Also, temp url and view is associated to the template, so I can keep the old upload templates/views for comparison.