Converts test suites to use inspec, fixes errors

[cattywampus]

The Minitest Chef handler has been deprecated and users are encouraged to switch to Inspec. This change removes the usage of minitest from this project and updates the tests and verifier to use Inspec instead. In addition, I discovered a few issues with getting the tests to work:

• All test kitchen runs failed early because there was no attribute set for accepting the license to use wlp. This attribute is now set for all suites in the .kitchen.yml.
• The custom test suite failed to install the extras package because it doesn't exist on remote repository. I had to rename this to be developers-extras.
• The install_feature resource in the custom test recipe was using a property called location, but there is no property defined in resources/install_feature.rb, so I removed this usage.
• The installUtility wasn't able to find a feature called mongodb so I renamed it to mongodb-2.0.

All of the test cases are passing across all suites and platforms. If for any reason the above issues are an oversight in my understanding of how to make the tests work, please let me know and I can back pedal these changes out.