Update Axis2 version.

git-svn-id: https://svn.apache.org/repos/asf/axis/axis2/java/rampart/trunk@1725631 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/pom.xml b/pom.xml
index fe25791..45a9719 100644
--- a/pom.xml
+++ b/pom.xml
@@ -604,7 +604,7 @@
     </modules>
 
     <properties>
-        <axis2.version>1.7.0</axis2.version>
+        <axis2.version>1.8.0-SNAPSHOT</axis2.version>
         <axiom.version>1.2.17</axiom.version>
 
         <wss4j.version>1.6.16</wss4j.version>