Initial buildup/teardown functionality for issue 19
Renamed before/after methods and interfaces to setup/teardown
Updated documentation with some information about testing suites
One more documentation update for suites
Some clarification for the documentation in the example test suite.
Removing unnecessary defer (the call was already at the end of the function it was in
)
Merge remote-tracking branch 'origin/master' into feature/testing-suite

Pulling latest changes to testify into the feature/testing-suite branch,
since I'm using the feature/testing-suite branch for production code and
want to make sure I'm also using all of the latest changes from master.
Merge pull request #24 from stretchr/feature/testing-suite

Testing Suite (and setup/teardown) functionality