Remove browserstack code.
Cleanup, removed railtie stuff.
Comment out browserstack usage for now.
Optional loader for BS gem and fix setting exit_code for base runner.
Tweak Travis CI runner config.
Require yaml
Remove cleaned up railtie
Clean up some requirements.
squash!
Refactor and restructure.
Merge pull request #34 from plasticine/extract-browserstack

Extract browserstack centric stuff into collaborating gem