Merge pull request #777 from UM-USElab/research_grades

Moved the course research grade data export to a background worker. The ...
Merge pull request #778 from UM-USElab/2014-09-18--research_grades

2014 09 18  research grades
AJ-2294 Create migration to rescue production and staging from db incongruity
Patched rubrics for staging and production