FELIX-4089 Extender do not deactivate managed components when stopped

* Used BundleTracker to track ACTIVE bundles
* Cleanly deactivate managed bundles when iPOJO bundle is stopping
* Notice that we have now a dependency on compendium R4.2

git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@1487779 13f79535-47bb-0310-9956-ffa450edef68