Merge pull request #1734 from jbertram/2.3.x

A few commits for EAP
https://bugzilla.redhat.com/show_bug.cgi?id=895377 --  JMX notifications cannot be received
Merge pull request #1740 from gaohoward/2.3.x_bug895377

https://bugzilla.redhat.com/show_bug.cgi?id=895377 --  JMX notifications cannot be received
fixing XML import/export test
(fix provided by Howard and Clebert)
Merge pull request #1745 from clebertsuconic/2.3.x

fixing XML import/export test
HORNETQ-1370 - applying fix on XMLExporter on the right place
Merge pull request #1746 from clebertsuconic/2.3.x

HORNETQ-1370 - applying fix on XMLExporter on the right place
HORNETQ-1379 & https://bugzilla.redhat.com/show_bug.cgi?id=1125042 - forcing clients out when the server is stuck on delivery over OIO
Merge pull request #1747 from clebertsuconic/2.3.x

https://bugzilla.redhat.com/show_bug.cgi?id=1125042 - forcing clients out when the server is stuck on delivery over OIO
HORNETQ-1379 & https://bugzilla.redhat.com/show_bug.cgi?id=1125042 - using executor on ping flushes to avoid waiting for a lock
Merge pull request #1750 from clebertsuconic/2.3.x

HORNETQ-1379 & https://bugzilla.redhat.com/show_bug.cgi?id=1125042 - using executor on ping flushes to avoid waiting for a lock
https://issues.jboss.org/browse/HORNETQ-1384 & https://bugzilla.redhat.com/show_bug.cgi?id=1013777 - Large Message Sync could be left unattended after failure
Merge pull request #1755 from clebertsuconic/2.3.x

https://bugzilla.redhat.com/show_bug.cgi?id=1013777 - Large Message Sync could be left unattended after failure
HORNETQ-1372 & BZ1113908 - TopicControl.listDurableSubscriptionsAsJSON does not work with heirarchical topics