Sponsor preferences tests
Project spec tests
Update rails and gems
Fixed errors with paperclip that came from updating
Instructor tests
Updated Readme
Merge commit 'c5ff82f057c890188d0219ca15e625ff86e242b3'

* commit 'c5ff82f057c890188d0219ca15e625ff86e242b3':
  Updated Readme
  Instructor tests
  Fixed errors with paperclip that came from updating
  Update rails and gems
  Project spec tests
  Sponsor preferences tests