Fixed a configuration typo in the example files.
Added GF, Mechanized Units, and Shock Troops to the configuration file.  Be cautious, they will be treated as ships if you leave them in.  Also ensured that ships not listed in the prioritization are destroyed last, in no particular order.
Started leaving prebuilt fleets in the fleet folder. To access these fleets, you simply refer to them as fleets/example.json in the command line as an argument.