removed comment about gem 'fb-fsevent' from CONTRIBUTING.md as it is no longer in use
Merge pull request #410 from galori/issue_409

removed comment about gem 'fb-fsevent' from CONTRIBUTING.md as it is no ...
ignore vendor/bundle path
migrate VCR state to an actor
move VcrActor to own file, start actor with supervision, add some spec helpers
use a supervision group to launch the vcr actor
add some remarks for the remaining things to fix
first steps to make celluloid support optional