Use Bunny 1.4.0+
Adapt some tests for Bunny 1.4
Overview won't contain any listener info for non-administrators
Purging a queue no longer carries a response body
Update change log
Update hashie and multi_json

Also made these dependency versions less strict 
as this gem uses a small subset of the their 
functionality so future minor updates shouldn't
break it.
Merge pull request #9 from damonmorgan/feature/dependency_update

Update hashie and multi_json
Update ChangeLog
Merge pull request #10 from damonmorgan/feature/dependency_update

Update ChangeLog
fix the specs and .travis.yml so everything runs
add language to .travis.yml
don't spam the upstream maintainer

[ci skip]
make the testing environment more to my liking
restrict pry and by bug to ruby 2.x