updated companies controller show action to eager load a company's employees, challenges, topics, and feedback_questions
added feedback questions resource to routes file
users can add feedback questions from the company page
Merge pull request #48 from andmcgregor/create_questions

Create feedback questions & eager loading in the company show view
Add basic tests for ApiController
Merge branch 'master' of github.com:andmcgregor/tbd into more-controller-testing
Write tests for CandidatesController + refactor to make them pass
Fix :test_code bug
Add tests for checkins controller and make them pass
Add tests for employees controller and make them pass
Add pending tests for SessionsController
Add pending TopicsController tests
Remove :test_code from attr accessible
Add more pending tests + fix sample_code bugs