Resourcified trackers.
Strings as html safe.
before_validation_on_create callback removed in Rails 3.1.
attachment: add missing diff type at functional tests (#2371, #9612)
remove trailing white-spaces from config/locales/bg.yml
Bulgarian translation updated by Ivan Cenov (#9615)
REST API for issue categories (#9553).
Resourcified issue categories (#9553).
Makes issue categories available in project REST API (#9553).
remove unused Iconv from issues helper "issues_to_csv" method (#4742)