removing old views
moving css tests
removing old fixture
adding  <meta charset=utf-8> to fixtures
replacing old css with new one from smb111-regroupement-1
adding case when 2 questions with same answer possible. Fixing by adding question_id in sql requests
Changing timestamp from date format to a float with microseccond Time.now.to_f
Solving session_id problem : replacing session_id by user_id because session_id already feeded
cleaning 1 attendee unittests for poll model
cleaning 1 attendee unittests for poll model
adding tests for string response and modifying controller to do so