Started new XMPP implementation in oracle-jutils

To provide an easier and more complete set of tools, i've started to implement XMPP package inside oracle-jutils (https://sourceforge.net/projects/oracle-jutils/).
Some names have changed but the code has been totally reviewed to provide more functionalities, in a cleaner way.
All my development efforts will be focused on oracle-jutils.
Do not hesitate to go on oracle-jutils and tell me if you think about functionalities you would like to be added.