srv<->client works now
	modified:   btree/btree.c
	modified:   cgi/Makefile
	modified:   cgi/client/pbkc.c
	modified:   cgi/pbkc
	new file:   include/ansi_colours.h
	modified:   include/btree.h
	modified:   include/pb_limits.h
	new file:   include/pb_str.h
	modified:   include/skt.h
	modified:   socket/sktc.c
	modified:   socket/skts.c