Add interface to unblock previously denied memberships
Make previously denied users list collapsible
Update groups controller
Merge pull request #940 from concerto/deniedMembers

Add interface to unblock previously denied memberships
i18n - models
i18n - models pt. 2
fixed interpolation fails
fixed more interpolation fails
Reverted i18n commits and moved to branch
fix crash in weighted shuffler when content with id does not exist
Merge pull request #942 from simplysoft/fix-shuffler

Fix crash in weighted shuffler when content with id does not exist
Merge branch 'master' into attribute_names

* master:
  fix crash in weighted shuffler when content with id does not exist
  Reverted i18n commits and moved to branch
  fixed more interpolation fails
  fixed interpolation fails
  i18n - models pt. 2
  i18n - models
  Update groups controller
  Make previously denied users list collapsible
  Add interface to unblock previously denied memberships