Generalize deployment tests

I generalized the deployment tests by removing all of the hard coded node names, ports, and nics, and instead imported them from a JSON file.  The JSON file's name is defined in deployment.cfg, and the file is used to populate information about the environment that the deployment tests will be run in.
Yes.  The dell switch lists ports in a sorted manner.  Consequently, the parser that I wrote that populates the lists will do so in a sorted manner.  Is this acceptable?