HORNETQ-1408 - Count number of messages acknowledged per queue
HORNETQ-1409 - Do not flush internal executor when retrieving number of messages or messages added
HORNETQ-1342 - Clean up DuplicateIDCache for bride use-cases as well
Merge pull request #1838 from jbertram/master

Handful of fixes
https://bugzilla.redhat.com/show_bug.cgi?id=1141873 - leak on PagePositionImpl