moved application.html to haml and added conditional "admin" class on <body>
Added force-continue button visible in views where @test_user is true,
which submits to test-user-only TasksController#force_continue.  This
action resets the waiting-room expiration time for the given task to be
1 second in the past, then redirects to the welcome page, which will now
have a zero timer and will proceed with flow immediately.
Added route for this action (+ specs) and cucumber test
Cleaned up questions-controller to not rely on JS dialogs, which are a
waste of time.
Added validations on questions, which didn't have any before
Merge branch 'test/AF/integration'