Added decision to include parallel port subdrivers.

If no way to control a PC-style LPT port is found, all subdrivers,
except the PIC-an-LCD will be disabled.
PIC-an-LCD uses the serial port.

server/drivers/hd44780.c

@@ -74,7 +74,6 @@
 #include "hd44780.h"
 #include "report.h"
 
-#include "port.h"
 #include "timing.h"
 #include "hd44780-low.h"
 #include "hd44780-drivers.h"