Allow services to be added *and removed* from /etc/finit.conf

This patch fixes a long standing issue where removing a service from
/etc/finit.conf does not stop and unregister it.  The issue was caused
by the Finit support for "protected" services, e.g. services created
by plugins like hotplug.so

To reproduce issue before this fix:

    cat /etc/finit.d/available/ntpd.conf >> /etc/finit.conf
    initctl reload

The NTP service now runs smoothly, as expected.  Later on, we decide to
drop it from our system:

    sed -i 1,2d /etc/finit.conf
    initctl reload

... and the NTP service continues to run unaffected.  Not what most sane
users expect.

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>

src/conf.c

@@ -626,7 +626,7 @@ static int parse_conf(char *file)
 		_d("%s", line);
 
 		parse_static(line);
-		parse_dynamic(line, global_rlimit, NULL);
+		parse_dynamic(line, global_rlimit, file);
 	}
 
 	fclose(fp);

src/service.c

@@ -1107,6 +1107,7 @@ int service_register(int type, char *cfg, struct rlimit rlimit[], char *file)
 	else
 		svc_mark_clean(svc);
 
+	/* for finit native services only, e.g. plugins/hotplug.c */
 	if (!file)
 		svc->protect = 1;