Remove Sequel

We will be using write protected admin API on the backend app
Further remove all DB related pieces
Bring back Sequel

It will keep users table for oauth
Add seeds
Extend schema

So it is similar to one in whitehall
Upgrade to rails 3.2.14
Upgrade other gems
Keep specs pending for now

Need to rewrite this to use real API on the backend
Go with Rails 4.0
Fix Rails 4 deprecations
Add secret_key_base for encrypted cookies
Restore proper bundle requires
Serialize User#permissions in yaml
Persist users access_token for API requests
Make TariffAdmin use backend-write API for section notes
Fix Rails 4 deprecation warnings
No need for request_store now

Will not be passing bearer token for now
Enhance API response stubbing
Add travis yml
Bump dependencies