FBB Driver changes.

24/10/99 : 1st release of the drivers

24/12/99 : DED : Driver crashed when TNC not connected. Fixed.
24/12/99 : PTC : Driver crashed when TNC not connected. Fixed.
24/12/99 : TCP : Driver crashed if thread error. Fixed.
24/12/99 : TLN : Driver crashed if thread error. Fixed.
24/12/99 : TLN : Outgoing connection did not work. Fixed.