Set up basic feature toggling for registration/feedback/submission

- Wire up Redis
- Remove duplicate AR connection logic in Unicorn config
Inline year defaulting for submissions
Send users to a landing page when submissions are closed
Fire up Redis on CI
Expand to 50 results per page in the admin
Set up Hound
Add the schedule builder to the feature toggler class
Build out registration module
Fixup Hound finds
Merge pull request #36 from modeset/registration

Add Registration