SM-2253: Upgrade to Akka 2.2.3
SM-2254: Remove akka-osgi-aries and switch to Akka's own OSGi support

git-svn-id: https://svn.apache.org/repos/asf/servicemix/smx5/trunk@1572223 13f79535-47bb-0310-9956-ffa450edef68