BUG-986 - remove catch Throwable (sonar)

- avoided catch of Throwable
- decreased some debug levels to trace

Change-Id: I26b6a8f260fc6db5596df07f9408010118a72ea1
Signed-off-by: Michal Rehak <mirehak@cisco.com>
Added statistics for received packets in and for sent addFlows to the RPC and Data Store drop tests. BUG-991 (https://bugs.opendaylight.org/show_bug.cgi?id=991)

Change-Id: I3a99bb81c8eadf87d731715b1f40f36af9734ba9
Signed-off-by: Jan Medved <jmedved@cisco.com>
Merge "Added statistics for received packets in and for sent addFlows to the RPC and Data Store drop tests. BUG-991 (https://bugs.opendaylight.org/show_bug.cgi?id=991)"