Release distribution bundle

tar ball / zip file containing all required artifacts for an UPS release:

* database configuration files and modules for WildFly and JBoss AS7.1.1
* WAR files for Keycloak and the UnifiedPush Server (for WildFly and JBoss AS7.1.1)
* source JAR files of the UnifiedPush Server for debugging.

Done for https://issues.jboss.org/browse/AGPUSH-840