Fixing some small lingering bugs

Makefile

@@ -14,3 +14,6 @@ default:
 tarball:
 	cd .. ;\
         $(TAR) jcf $(TARBALL) --exclude='.svn' firewall-sosdg
+
+upgrade:
+	mv -f blocked ipv4-blocked &>/dev/null

include/static

@@ -25,7 +25,7 @@
 # These defines are here to help pre-1.0 users easily upgrade, defines critical defaults
 # that would otherwise require remaking their options file.  I leave this on by default,
 # but if you want to make sure you have a current options file, define this to 0.
-if [ $COMPAT_CONFIG == "1" ]; then
+if [[ "$COMPAT_CONFIG" == "1" ]]; then
 	MODPROBE=`which modprobe`
 fi
 

ipv4-blocked.default

@@ -8,3 +8,5 @@
 # Example:
 # - Block SRC of eth1 192.168.0.5:80 from contacting DST eth0 192.168.1.10:20 through 21, TCP
 #  eth1:192.168.0.5:80:eth0:192.168.1.10:20-21:IN:TCP
+# Useful ones that I use at home are:
+#::6881-6999:::OUT:TCP