Stop subclasses of stateflow'd classes from exploding.
Merge pull request #37 from jamesotron/subclass-fu

Stop subclasses of stateflow'd classes from exploding.
Fix small typo in example
Merge pull request #38 from maxschulze/patch-1

Fix small typo in example
Remove .rvmrc and add Ruby version to Gemfile.

Expecially because the rvmrc was pointing at an ancient version of Ruby
that I don't even have installed.