Subscribers have phone numbers

closes #19
The email, address, city, state, zip, and phone fields on the subscriber can be nil

closes #20
Remove calls to a favicon until we have one
Change the date format on the subscribers form
Added a 'And I debug' step

closes #22
Removed Order from the approved set of sources

closes #23
- Added the Font Awesome library to the app
  (http://fortawesome.github.com/Font-Awesome/)
- Update forms to have icons

closes #24
Update readme to include Gemnasium and Code Climate
Update Libraries
Update Rails
Merge branch 'master' into cg-js-crud-concert-series