Single boot driver loaded, while multiple can be included in the boot image.

The user needs to set label=... to choose the driver of his or her choice.
This driver will be mapped onto the controller that is set in controller=...

Minor cleanup of kernel source code (boot image table now is static).

tools/Makefile

@@ -7,6 +7,9 @@ MDEC=	/usr/mdec
 MAKE=	exec make -$(MAKEFLAGS)
 
 # specify the programs that are part of the system image
+# only one boot medium driver can actually be loaded, 
+# use labels to include multiple driver and set a label
+# at the boot monitor to select one
 PROGRAMS=	../kernel/kernel \
 	../servers/pm/pm \
 	../servers/fs/fs \
@@ -14,11 +17,12 @@ PROGRAMS=	../kernel/kernel \
 	../drivers/tty/tty \
 	../drivers/memory/memory \
 	../drivers/log/log \
-	../drivers/at_wini/at_wini \
-	../drivers/bios_wini/bios_wini \
+	AT:../drivers/at_wini/at_wini \
+	BIOS:../drivers/bios_wini/bios_wini \
 	../servers/init/init \
 #	bootdev.img
 
+
 usage:	
 	@echo " " >&2
 	@echo "Master Makefile to create new MINIX configuration." >& 2
@@ -55,7 +59,7 @@ image: programs
 includes:
 	cd ../include && $(MAKE) install
 
-depend:
+depend: includes
 	cd ../ && $(MAKE) depend
 
 programs: includes