Fix Hubot test suite and set him up to use TravisCI

I cloned down Hubot today and notice many of the tests were failing so I fixed up the tests and go rid of the deprecation warnings.

I then added the required config files to get him running on TravisCI. The only thing required from your end would be setting up the service hook, detailed in step two at this URL:

http://about.travis-ci.org/docs/user/getting-started/