Some source cleanups in Reloaded

[pulkomandy]

From [email protected] on June 04, 2010 19:19:32

There is a pbGPBuffer created at emulator init and used in various places
(namely fdc,dsk,tape and zip handling). This is dangerous and likely to
break in the current system. It may be the cause of dsk corruption we see
sometimes. Remove it!

Also, the pFOdebug should be replaced with logMessage or other similar
functionality, ie send the output to th gui and allow it to do anything
with it... save to file or show a logwindow somewhere. Would avoid creating
an empty debugger.txt on every run.

Original issue: http://code.google.com/p/cpcsdk/issues/detail?id=23