:mass-assignment-deliverables branch

[professor]

modified: .travis.yml

modified: Gemfile

modified: Gemfile.lock

modified: app/controllers/courses_controller.rb

modified: app/controllers/deliverables_controller.rb

modified: app/controllers/teams_controller.rb

modified: app/models/course.rb

modified: app/models/deliverable.rb

modified: app/models/deliverable_attachment.rb

modified: app/models/faculty_assignment.rb

modified: app/models/registered_course.rb

modified: app/models/registration.rb

modified: app/models/team.rb

modified: app/models/team_assignment.rb

modified: run_rspec.sh