Split the bulk of the repository admin page into includable files.
Review Request #2292 — Created April 16, 2011 and submitted
Split the bulk of the repository admin page into includable files. This splits the javascript and confirmations/popups sections out of the Repository's change_form.html template and into two includable files. This helps with organization and allows us to build UIs outside the admin UI for handling the complex Repository change logic.
Tested that the page still worked completely as expected.
