Added separate, standard config file for pronghorn floodlight.
Changed main class so that can make static call into it to produce a controller.
Sanitized spacing in pronghorn modules.
Goal is to move away from REST interface and instead have pronghorn make flow table changes directly through function call.  Thererfore, expanding pronghorn module's interface.
Ensuring that non-rest interface listens for error messages.
Pushing errors to preceding commands through barrier callback.
StaticFlowEntry pusher now exports facility for parsing actions into flow mods.
Does two things:

  1) PronghornModule will now push IOExceptions back to caller
  2) Starts trying to translate PronghornFlowTableEntry objects into
     OpenFlowMessages.
Added further fields for flow table entries.
Exported method for initializing flowmod methods.
Actually constructing openflow messages directly from pronghorn table entries.