Caution! This is backwards incompatible

Improved testing (cleaning up afterwards, catching stdout)
Refactored import function to it's own file
Removed monkey patch to log capturing, but still needs work
Translation fixes
Removal of several gettext phrases

For seeing overview of system status, for deleting and loading
courses, for seeing log of git imports of courseware.  Includes command
for importing course XML from git repositories.

Added a lot of tests for additional coverage with some minor fixes
those tests discovered