Fix for Redis spawning new clients for each topic/queue

[sardaukar]

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this also includes a RSpec syntax update, I can't stand deprecation warnings :)

OK, so this fixes https://github.com/copiousfreetime/qup/issues/20, but the behavior is not covered in tests. I'm not too well-versed in TDD, and would appreciate guidance in getting it done.

Thanks for the push to do this myself, the code is really clean and the change was real quick!

[sardaukar]

btw, couldn't get Kestrel to run locally, so didn't touch those tests

[sardaukar]

Hmm, not sure why the build failed - it passes locally for me on 2.1.5, with Redis 2.8.19

[sardaukar]

Oh, I see - I wasn't using Bundler, so I have newer versions of RSpec and such... do you want to update the dependencies?

[copiousfreetime]

I'm doing some dependency updates right now to accomodate your pull request, Looks good so far.

[copiousfreetime]

You can ignore the travis-ci items, that's because the maildir gem now says it requires ruby 2.0 or higher and jruby has 1.8 and 1.9 modes. I've merged this pull request with #22 (basically lots of project maintenance cleanup). Check out the redis-refactor branch and make sure it satisfies your needs. If so I'll close this one and merge in #22 and push a new gem.

[copiousfreetime]

Oh, and add yourself to CONTRIBUTING.md. A commit on this pull request will do, I'll cherrypick it over.

[copiousfreetime]

@sardaukar just making sure the redis-refactor branch works for you, I'm going to close this today and push a new qup release.