Need to support machine 'flavors'

[chrisevett]

Test kitchen supports the idea of platforms where you can specify several different operating systems to run your tests against. We should add the idea of 'flavors' in our configuration so we can have those correspond to platforms. We would want to make a pool for each flavor, but they would share quarantines. Each flavor should get its own create and delete job id.

Thinking about this, it might get out of hand if we have to support 10 different OS's. Luckily I've never had to support 10 different OS's before