Update activemq to 5.7, xbean-spring to 4.5, slf4j to 1.7, jopt-simple to 4.9, json-lib to 2.4, commons-io to 2.4
Update activemq to 5.7, xbean-spring to 4.5, slf4j to 1.7, jopt-simple to 4.9, json-lib to 2.4, commons-io to 2.4

powertac/powertac-core