Add a support link

Test Plan:
- Load app in emulator, click on support link
Add support for downloading topics of articles

Test Plan:
- Download a full topic of articles
- Download a single article
Add various extra tests for logged in sessions

Test Plan:
- Make sure if logged off and running tests to give a message box that
  not all tests will be run
- Ruun tests, make sure they all pass
Add translations for new strings

Test Plan:
- Run automated tests and make sure the translation tests pass now
Implement automatic transcript scrolling

Test Plan:
- Watch a video from start to end and make sure the transcript lines
  scroll into view as the video plays.
Add code to make sure video transcripts load

Test Plan:
- Run tests
Add tests for articles actually loading

Test Plan:
- Run tests
Fix seeking in videos

Test Plan:
- Move slider around and make sure video plays afterwards.
Fix CSS font-sizes from dogfooding on devices

Test Plan:
- Dogfood on Flame 2.0
Make badges a bit smaller in width so they fit on 2.2 device

Test Plan:
- Flash phone to 2.2, make sure badges appear on one line
Fix default zoom for portrait mode for FxOS 2.1+ devices

Test Plan:
- Convert to landscape and portrait, the size of the fonts should appear
  the same.
- Zooming should still be possible.