Now you must specify a config location on command line.  Fixes #25.  That said, I feel like quality is being degraded with this commit.
1) First of all, an architecture flaw is found (try to print the help message with  out specifying a config)
2) Second I’m not 100% that the path resolution code to locate the file will work in a whole bunch of cases.

Nonetheless, moving forward.  (1) will be tracked with #37. (2) will be added to the set of unit tests once we start in with that. (#24)