Fix counter management in message store cache.
Reconcile outbound messages (and events) before inbound messages.
Merge branch 'feature/issue-844-fix-message-store-counters' into develop
Fixed depreciated start_worker
Merge pull request #846 from areski/doc/depreciated-start_worker

Fixed depreciated start_worker
Merge branch 'develop' into feature/adhoc-riak-client-v2-update