* infptrace.c: HP/Apollos have ptrace.h in the wrong place.
* remote-st2000.c: Massive changes to use new serial package.
Also added 'connect' command to transparantly connect to serial
port.
* ser-termios.c: Big cleanup, use nicer coding conventions.
* ser-bsd.c: New module, serial stuff for BSD systems.
* serial.h: Define struct ttystate properly using HAVE_TERMIO.
* xm-apollo68b.h: #define PTRACE_IN_WRONG_PLACE...