Created sessions controller and spec
Building user controller specs
Finished user#create controller and user model validations
Added sign_in and registration forms
Finished register, sign_in, and sign_out specs and ui
Completed challenges controller and model validation (and related specs)
Finished challenge show page
Moved challenge to partial and finished challenge index
Challenge create form, added specs and features to users#accept_challenge
Completed final style fixes
Merge pull request #2 from seanmack/user-authentication

Development