Beginnings of code update/overhaul replaced some constants with variables

[joeswhite]

This is the beginning of a code overhaul. This pull request was created to notify the main developer of intent to overhaul code. A few small code changes have been made. These changes are simply replacing some constants with variables so config currency is expressed and not hard coded.

These changes are only a few of the places where updates need to occur for this overhaul.