[Bug 625898] Link timestamp to specific post in question
[bug 896137] Add django-badger

* add django-badger to vendor/
* add badger to INSTALLED_APPS
* add migration for django-badger related tables
* add django-badger strings extraction to settings.py

  Note that we only want specific .py files. We don't need to translate
  strings in the example or test code.
[bug 896137] Badges infrastructure

* adds kbadge django app which will centralize badge-related things
* adds notification for badge awarding which will email the awardee
* adds "award list", "award details" and "badge details" pages
* adds some really basic tests

At this point, you can:

1. create a badge in the admin
2. award a badge to someone in the admin
3. see the list of recently awarded badges (/badges/awards/)
4. see the details for a specific badge
   (/badges/badge/<badgeslug>/)
5. see the details for a specific award
   (/badges/badge/<badgeslug>/awards/<id>/)
Update migration-building-related docs
Add some very simple irc notification to Travis.

This works by running a super simple irc "client" that provides unix
filesystem pipes to interact with the server. It's pretty silly.

This is because TravisCI currently cannot send notifications to
irc.mozilla.org. See https://github.com/travis-ci/travis-ci/issues/436
Added API for oSUMO.
Main login links should redirect correctly
Skip redis tests for osumo better.
Make oSUMO admin page deal with old data.