Fixes for running chef-pedant against OHC

#### Pass --tty to rspec
When we run pedant against ohc it's done in a ruby subshell via mixlib-shellout. Rspec needs to know that a tty is available still so passing in --tty as an argument will allow colors to appear on the terminal. This should also enable color output in Jenkins.

#### Array == vs. =~
When comparing a set of keys that come back in an object from the server we don't care which order they are in. Array eq fails on the order where =~ doesn't. The order of the array may be different in OHC than OPC because OCH is using REE where OPC is MRI.