Auto generate secret token per #1013
Merge branch 'master' of github.com:concerto/concerto

* 'master' of github.com:concerto/concerto:
  add back date formats
  add missing keys
  Revert "add missing keys, remove unused ones"
  add missing keys, remove unused ones
  remove unused translations
  add missing devise translations
  remove kaminari views to fix #1023
  add i18n-task for development
  add in missing concerto translations
  revamp unsupported type translation to close #1026
  revamp the status badge helper