Timber Freeplay patch

Description
-----------
This patch allows free play for Timber.  

The screen displays "FREEPLAY" instead of credits.

Instructions
------------ 

1) Remove EPROM CPU0 on the CPU board (middle board of the MCR
stack).
2) Load the rom you have as a file using an EPROM burner.
3) Download a patcher program
4) Run the patcher program against the rom data with the patch file
5) Burn the new data to an EPROM and install

Bugs
----
None reported

Disclaimer
----------
You can damage your hardware installing modified ROMs if you don't know what
you are doing.  You are responsible for your own actions.

History
-------
Version 1.0: Freeplay only mode (not dip selectable)
