- add specs using rspec
- add features using rspec and capybara
- use postgresql for all environments
- cleanup source code
- paginate pull requests on subscription page
- auto remove subscriptions when pull request has been merged?
- user should be able to delete his own account
- add settings page, at least to show the email address
- activeadmin pages: filter users using user GitHub login
- add public page with pull requests activity: added, merged, etc.
- show pending notifications for current user