LevelDB persistent store requires a hint to do concurrent store and dispatch
Fixed by SVN 1295662
The change breaks the older stores that use ProxyMessageStore and ProxyTopicMessage store since the calls to the new addMessage and addQueueMessage with the boolean bypass the anonymous Proxy classes those store's create.
Updated the stores to also override the new methods in their anonymous proxy store instances so the messages get routed correctly.
add property optimizeMessageStoreInFlightLimit on Destinations so can set the inflight limit above which optimize store dispatch is no longer applied - for https://issues.apache.org/jira/browse/AMQ-3750 Subversion: Committed revision 1302887.