Added method to response to check whether the response is valid
test passing, needed to create a QuestionnaireNode in for it to appear on the page
removed cucumber show page after scenario passes
added a wait for x seconds step def
added a step def for a single student participating on a team assignment
test passing
Merge remote-tracking branch 'upstream/master'
steps pending due to session variable management with cucumber
defined, but pending, paths for manage and editing teams
Suppressed warnings to reduce cucumber output
Merge branch 'master' of https://github.com/expertiza/expertiza

* 'master' of https://github.com/expertiza/expertiza:
  Added method to response to check whether the response is valid
refactored some steps that were defined improperly
Added deploy to staging
removed some debugging output
Cucumber test refactoring and new feature for creating a course as an administrator

Refactoring:
    Logging in as admin step definition: moved from create_team_assignment_add_participants to authentication_steps
    Clicking on links: changed regex selector to allow multiple word
    strings
Extracted duplicated steps into Background blocks
Extracted duplicated steps into a Background block
Extracted duplicated steps into a Background block
added a step definition to create a table of users
course_node changes