Step 1 before refactor
Trying to remove activemodel::model
Adding create service for challenge
Adding update service for challenge WIP
Move the attribute retrieval into service object

- Backfill specs for form object

TODO:
- Backfill specs for service object and controller
Remove validation from challenges

- Backfilled services spec
Trying to get tests to work
Trying to upgrade to rspec3.1
Use rails_helper instead of spec_helper
Trying to get the weekly weight challenges controller working
Simplify asset inclusion
One failing spec after dev merge
Some changes to fix build
Merge pull request #73 from ijustwanttocode/jr/create_challenge_form_virtus

Challenge --> Controller, Form, Service, Views