This should enable logging of codejail on prod
Updating the release with a tagged hash
Change behavior of cohort addition interface

Instead of noting users that are already in a cohort and not changing
such users, clobber the previous cohort and display a message indicating
the previous cohort membership.

JIRA: FOR-452
Merge pull request #3228 from edx/gprice/FOR-542

Change behavior of cohort addition interface
Merge pull request #3236 from edx/sanchez/ora2-2014-04-07

Updating the release with a tagged hash
Merge pull request #3212 from edx/dcs/log-codejail

This should enable logging of codejail on prod
This makes the metrics tab "bars" clickable.

  Clicking on any of the bars displays a list of students for that
  particular action (either opened the subsection or attempted the
  problem). The list is only displayed if the number of students
  is less than 250. A csv download is also available.