Update metadata.rb
Update CHANGELOG.md

Updated with the 3.4.0 release.
Update the Gemfile for integration testing
Rubocop'd all the things.
Removed the "cloud" portion for the foreseeable future
getting rubocop happy to travis passes
WIP: commit to start chefspec being happy
Chefspec is the best spec

This is an inital commit of some generic chefspec
tests for the rabbitmq cookbook. I've tied it up to
the `rake travis` task so when this is merged we can
have it run as part of the PR process.

Again this is just an example and a start, we can attempt
to test the LWRPs at a later date.

Comments are more than welcome.