lml/ost — pull request #286 by kevinburleigh75 (2013-08-27 20:46:43+00:00)
Title: Suppresses SelAns confidence ratings for non-researchers

This PR should resolve issue #276.

The `Conf` column has been removed from the StudentAssignment show page, and the `SelAnsConf` column is now present in the report.xls spreadsheet only if the current user is a Researcher.