Remove broken submodule theme

Keeping the submodule theme uptodate is proving more awkward than useful - reverting docs back to default
rename runtests file

it was test definition and not running them, nose runs them
Renamed foldermodel -> model

the name of file holding models was inacfurately named and casued confusion
Create mediaType on models, id_ -> id in jsonify

we add mediatType as output for all models (applicaiton/vnd.org.cnx.module) and we
convert id_ to id for json output (backbone.js requires this)
change views to return a workspace as flat list of short form objects

We are returning a workspace of id, title and mediaType.
Tests to prepopulate one module and fixes to wsgi test for new workspace
mixedCase for all model fields

converting to mixedCase for all model fields, this should help Backbone