Mcquin/kitchen with travis

Use Test Kitchen for end-to-end testing in Travis.

you need to do something like this instead to block kitchen tests on PRs which will not have the encrypted data:

```
script:
  - '[ "${TRAVIS_PULL_REQUEST}" = "false" ] && bundle exec rake tests:integration || false'
```

See http://docs.travis-ci.com/user/pull-requests/