use better encapsulation for the naming convention behind thumbnails. Put it all in content.py rather than view.py.

refactor StaticContent id scheme to be the same as moduledata. Also expose a new 'get all content for course' which will be needed to support a asset management page.

allow 'is_staff' flagged user accounts to run as super-admin, which mean...

private/public unit

fix bug with editing HTML. The save() method should now return a diction...

Conflicts:
	cms/djangoapps/contentstore/views.py

always load in a new instance of the edit module. It appeared as though ...

in order to avoid using stale modules when editing, clear out the @module variable after a save(). Then on a subsequent edit, it'll get recreated

always load in a new instance of the edit module. It appeared as though on multiple edits (w/o refreshing page) without creating a new data model, we were always referencing stale content from the previous edit

Feature/cale/cms codemirror background

Feature/cale/cms new component ids

Feature/cdodge/cms permissions management

Feature/cale/cms tom wireframe

Make overview page conform to section/subsection/unit format. Breaks CMS editing of existing courses