adding a ruby-version file for rbenv. rbenv is like rvm, but lighter
1.Fixing test to reflect changes of #165. 2.Converting the Factory create method to mocks/stubs 3.fixing regex to output https if this was originally provided
Merge branch 'master' of git://github.com/professor/cmusv

* 'master' of git://github.com/professor/cmusv:
  Replaced registered_student with registered_student_or_on_team
  Removed deprecation warning
  Bug Fix: heroku doesn't have this downlowds directory, so lets put the file in tmp
  Fixed gradebook to show all users in the course, not just the registered users
  Removed deprecation warning
  debugger for Rubymine 5.0
  Undo previous change
  Updated for UI tweak
  My Courses on Course index page
  Improved breadcrumbs
  Small UI improvements