Robolectric annotation processor - rebased

This is a rebased version of PR #1224. Hopefully it will pass the Travis build.
Ok, I understand your point better now - RAP improves things whether you test-drive or not, so there's no value added in mentioning TDD specifically. I agree, that makes sense.

For the record, I actually intended for the "develop" and "compile" phases to describe both the app & test development (tests first in a TDD environment, obviously) - so I did not mean to imply that the app code was necessarily written first. However I can see now that neither did I imply that the test code should be written first - so my description of the development cycle, while generic enough to encompass TDD isn't specific to TDD. Further proof that the reference to TDD in this context is superfluous.

I'll try and have something for you for this (and the other items) sometime on the weekend.