Revision 1421119

[ARIES-986] The blueprint extender does not support high concurrency very well

Make sure that containers destruction is synchronous even when multi-threaded by blocking until the destruction is finished.  Delegate more work on the BundleTracker.  Make sure all threads are stopped while stopping a container, better support for having the bundle stopped while creating the container, which can happen because the framework does not hold the bundle lock while firing the STARTED event.

Conflicts:
	blueprint/blueprint-core/src/main/java/org/apache/aries/blueprint/container/BlueprintContainerImpl.java
	blueprint/blueprint-core/src/main/java/org/apache/aries/blueprint/container/BlueprintExtender.java