Document how to test listen / notify with postgres
Add notify method to Response model
Refactor NOTIFY test code into RSpec matcher
spec helper for sign in tests
added request spec helper file
removed require relative line in spec helper
Implemented Fabricator gem for Before mocking; passed first test for question count
Modified question fabricator to assign type as ShortAnswerQuestion, not MultiChoiceQuestion
Refactored before block for mocking; Now passing all 8 example tests to check various Question types
Tests for all types of questions' presense, choices, and answer (within choices) passing