Merge pull request #15 from sarahmei/master

Basic test framework with matchers, negation, and a binary test runner.
Fix typo in gem homepage
RaiseError matcher takes optional error type.
Failing trial for unmocking.
Remove empty trial file
Fix broken equal matcher
We don't have mirrored trial files :(
We don't need that line cluttering up our count
Add before and after hooks
Refactor method mocking + now it cleans itself up!