redding/assert — pull request #195 by kellyredding (2014-06-17 15:04:39+00:00)
Title: auto-unstub on context teardown

This adds a new helper method, `unstub!`. This method unstubs any
existing stubs. Then this adds calling that method automatically
on any context teardown.

The effect is that Assert will auto-unstub any stubs on test teardown.
This means devs don't have to remember to do it and it minimizes
the opportunity for memory leaks due to stubbing.

@jcredding ready for review.