[bug 897058] AAQ flow sign in/register with Persona
[bug 905118] Redirect correctly on sign in with Persona
[bug 897985] Persona for mobile
[bug 909660] Track read after 5 seconds on landing page.
[bug 903829] Show redirects in /documents separately
[bug 907053] Remove hot topics landing page
[bug 911846] Switch the repr to a unicode

This fixes errors in production kicked up by the error handling
for whatever errors the error handling was handling.
Merge pull request #1600 from willkg/repr-911846

[bug 911846] Switch the repr to a unicode
[bug 911858] Link to user's profile from avatar and name
[bug 907224] Fixed advanced search with products error
[bug 897987] Persona for Get Involved pages
[bug 904036] L10N dashboard top 20 filtering fix

Prevents unlocalized How To Contribute articles from being shown in the
top 20 articles in the l10n dashboard.
Fix IRC channel in .travis.yml
[bug 910335] Linkify usernames in Media Gallery
[bug 910149] Persona for @login_required
[bug 892411] Update locked icon for questions
[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