Feature/jzoldak/cms unit testing

need to pass in course namespace when rewrite static links in the CMS

make sure we strip away the leading '/' from the subpath for static cont...

make sure we strip away the leading '/' from the subpath for static content otherwise the naming expectations will break

Feature/cdodge/static tab edit

address feedback from cale

Conflicts:
	rakefile

Feature/ned/quieter tests

Put the coverage data files in the reports dir, where they will be treated like the disposable things they are.

Split out requirements that come from the local mitx repo and those that come from github, and upgrade the local requirements before running tests