bug 741 - Make sure to stop threads on bundle stop on TopologyServiceShim

- Cleanup of threads on bundle stop as well adjust of the logging
level during InterruptException

Change-Id: I3ae7aa5f50f76fae72c3119d00459f11ffa5a4ee
Signed-off-by: Giovanni Meo <gmeo@cisco.com>
Merge "bug 741 - Make sure to stop threads on bundle stop on TopologyServiceShim"