Addresses comments in pull request
- adds methods to handle flipper clicks, but I'd like to concatenate these into one. I don't know how to pass them arguments using goog.bind.
The first method is instrumented partially as if I were going to do this but the argument is always undefined.
310: create single method to handle flipper buttons clicks

- also make the responseIndex actually an index value

Jira: BRIX-310
310: small refactor of how feedback flippers are drawn

Jira: BRIX-310
310: Separate out drawing the code examples from drawing feedback

Jira: BRIX-310