[EAP6-121] synch up with GC bzs
Merge pull request #6014 from aogburn/EAP6-121

[EAP6-121] synch up with GC bzs
[WFLY-3078] also marshal directory-grouping if no servers are configured
Merge pull request #6016 from emuckenhuber/other

[WFLY-3078] also marshal directory-grouping if no servers are configured
WFLY-3060 - Rare KrbException: Request is a replay issue in negotiation tests
WFLY-2910 json.pretty on REST management has no effect
Minor - remove unnecessary dependency on Weld's internal class
[WFLY-3008] missing system property resolution for interface criteria
[WFLY-3000] set application/json as content-type
[WFLY-3008] fix rbac domain test configurations
[WFLY-3043] Cleanup messaging XML configuration

Remove elements from the messaging XML configuration that are defined
using the default values from the corresponding management model
attributes.

JIRA: https://issues.jboss.org/browse/WFLY-3043
[WFLY-3051] Add a dependency on 'javax.api' to the 'org.wildfly.extension.io' module.
Merge pull request #6015 from jmesnil/WFLY-3094_address-setting_validation

[WFLY-3094] Validate address-settings configuration
[WFLY-2764] Cleanup messaging operation descriptions

clean up JMSServerControlHandler that exposes hornetq-server operations
refactoring
refactor HornetQServerControlHandler
refactor HornetQServerControlHandler
add backs all reply descriptions
refactor JMSQueueDefinition & JMSTopicDefinition
refactor JMSQueueDefinition & JMSTopicDefinition