upgraded ikev2 scenarios to 5.0.0

testing/tests/ikev2/rw-psk-ipv4/description.txt

@@ -1,6 +1,6 @@
 The roadwarriors <b>carol</b> and <b>dave</b> set up a connection each 
 to gateway <b>moon</b>. The authentication is based on distinct <b>pre-shared keys</b>
-and IPv4 addresses. Upon the successful establishment of the IPsec tunnels,
+and <b>IPv4</b> addresses. Upon the successful establishment of the IPsec tunnels,
 <b>leftfirewall=yes</b> automatically inserts iptables-based firewall rules that
 let pass the tunneled traffic. In order to test both tunnel and firewall, both
 <b>carol</b> and <b>dave</b> ping the client <b>alice</b> behind the gateway <b>moon</b>.