[Axis2] Publisher-subscriber implementation for Axis2

[Chamikara Jayalath]

Hi all,

As I mentioned in the JIRA http://issues.apache.org/jira/browse/AXIS2-793,  there does not seem to be much support for Axis2 in this space. I am workaing on an Pub/Sub implementation for Axis2. Current goal is to support WS-Eventing but the implementation could be expanded to support Notification as well.

I have attached the code into the JIRA. But would love to add it to the Axis2 code base so that others can also contribute. Shall we go forward and add a maven module for this.

Chamikara