Better searching software
Change software tooltip in search field
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Small review fix
Merge pull request #503 from quamilek/dev

Improve searching for software
Change classifier url, add department to select_related
Nicer parent field name calculation for select_related
Merge pull request #517 from deshipu/master

Change classifier url, add department to select_related
* use RQ instead of Celery
* renamed USE_CELERY -> ENQUEUE_REGISTRATION
* OP_START_DATE is now either a date object or None
Merge branch 'master' of ssh://github.com/allegro/ralph into rq
RQ migration complete