test-kitchen

This adds working test-kitchen with tests for ubuntu-12.04 and ubuntu-13.10. I added some initial CentOS 6.4 support as well (along with tests for that). I haven't tested the backup restoration process that the server recipe seems to do, but that could be added in the future. This should at least allow for more tests to get written.

If you have any suggestions for modifications, please let me know. Thanks!