Marketplace Admin Panel issues

[butler]

There are several issues with the Admin part of the marketplace:

• The Admin pages have lost all the layout information. Mostly just very ugly
• As part of that all the button graphics are broken
• The "change" button when it appears seems to be broken
• figuring out how to change the category of a model is non-trivial. It can be changed either by:
  • the person who uploaded it
  • if an admin other than that person only SasView? models can be changed and to do so requires going to Admim → Sasview models → model name (and of course the change button does not work)