Made boring staff table
Added basic shoulda matchers for phase and challenge specs
added cohorts migration
added restful cohorts
Commit before migration testing
Added phases, week, and day to challenges.  Added Challenges to phases.  Models not updated
updated cohorts
added more cohort actions, but need to configure devise so we can create users/establish cohort_ids
Merge branch 'development' into spec
refactored events controller and fixed events views
moved create_challenge link from index
Red to Green
Merge branch 'styling' into development
New styles for challenge index
Nav Bar Made gray
Added local ip to greenlist for better_errors (localhost works, tie-fighter.local didn't)
Removed visibility of each loop on challneges#index.  Added time.ago to index
Only show updated at if it differs from created at in challnges#index & challenges#show
Merge branch 'development' into spec
Added forms test for challenges
Changed layout title text
Deciphered week logic, make rake task 'set_weeks' to correctly assign default weeks for challenges