Closed economy system

This is a closed economy system created by Zren/Shadeness at my request.

The intent was to add a config option in the main config file which allows a server-defined economy account where ALL transactions are put into.  For example, all town claims, town creation, nation creation, etc.. are put into this predefined account.  Therefore no money spent in Towny itself is eliminated, it is transacted to another account.

This code is approximately 3 months old as of 11/22/12 and may be woefully out of date given the new permission system, but it has worked flawlessly through 3 patches.

Any other details needed can be emailed to finamenon@yahoo.com or AIM: finamenon.