Created a .gitignore file to ignore .bundle directories.
Added instructions on how to run tests so that other people do not go on a wild goose chase figuring out how to test because they have never seen wwtd.
Fixed an bug in Rails 3 where the a call to Model.create! was calling the after_commit callback.
Merge pull request #20 from polleverywhere/master

after_commit should not be called on a failed Model.create! in Rails 3