+04Nov99=======================================================================
+1. Removed ~ from the end of the PC18.
+2. Removed a hangover from duff character checking in cluster.pl
+3. Stop PC frames that are to be routed, being routed back to themselves.
03Nov99=======================================================================
1. Simplified command caching so it uses anonymous subroutines, you should
also get error messages back on the console now when developing.