added sql/rw-psk-ipv4 scenario

testing/tests/sql/rw-psk-ipv4/posttest.dat

@@ -0,0 +1,10 @@
+moon::ipsec stop
+carol::ipsec stop
+dave::ipsec stop
+moon::/etc/init.d/iptables stop 2> /dev/null
+carol::/etc/init.d/iptables stop 2> /dev/null
+dave::/etc/init.d/iptables stop 2> /dev/null
+moon::rm /etc/ipsec.d/ipsec.db
+carol::rm /etc/ipsec.d/ipsec.db
+dave::rm /etc/ipsec.d/ipsec.db
+~