RTGOV-274 - initial experiment with OSGi. Need to reduce imported dependencies to only those essential, as maven bundle plugin defines them as imports

RTGOV-274 Add support for deploying to Karaf.
Separated out JMS generic EPN Management stuff from JEE specific.
Include ActiveMQ to provide JMS support for EPN Manager
Added OSGi loader for EPN, and modified overlord-rtgov-epn so that there is a war and bundle version. TODO: once JPA is supported, need to refactor the EPNs to have a core, that has the artifacts, and the war/bundle just package