Actually run cask to get dev dependencies installed (mainly ecukes)
And ensure cask is on $PATH for travis
Add cask back into travis config
Switch to evm for travis (see #3556)
Add install of darcs to travis build setup.
Some recipes require darcs so we should install that before running tests.
Pipe the cask go script to python, not sh
See http://twitter.com/rejeep/status/391931610959839232, thanks @rejeep
Fix typo in path to cask "go" script
Use cask instead of carton for travis build
Use Carton for running Ecukes tests.
add travis-ci configuration