https://issues.jboss.org/browse/WFLY-2857 cli: support for command substitution enclosed with `
JBQA-8764: test for DatabaseLoginModule which uses replaceable datasource
[WFLY-3029] add remove-jndi operation for JMS resources

* add remove-jndi operation to jms-queue, jms-topic and
  connection-factory resources
* refactor the code to mutualize handlers for add-jndi and remove-jndi
  operations
* add rollback handler for these operations
* change jms-queue entries attribute to read-write. There is no
  reason this attribute can not be written (although the runtime
  will need to be reloaded to take it into account)
* bump up management version to 2.1.0

JIRA: https://issues.jboss.org/browse/WFLY-3029
[WFLY-3061] Check JMX subsystem is actually available before setting dependencies on JMX MBean server
[WFLY-3061] Use readResourceFromRoot(PathAddress address, boolean recursive)
WFLY-3073 fix broken MBeanServer.createMBean() methods
skip empty server-config
[WFLY-3069] call remove at the correct resource
Merge pull request #6003 from emuckenhuber/other

[WFLY-3069] slaves cannot reconnect to a restarted master if RBAC is enabled
Merge pull request #5999 from stuartwdouglas/WFLY-3073

WFLY-3073 fix broken MBeanServer.createMBean() methods
WFLY-1727: resource injection support for external contexts
Merge pull request #5996 from asoldano/WFLY-3061

[WFLY-3061] Check JMX subsystem is actually available before setting dep...
[WFLY-3077] Strip [] from command line param values
WFLY-3083 BZ1072962: Upgrade to HAL 2.2.0.Beta4
Merge pull request #6012 from hpehl/WFLY-3083

WFLY-3083 BZ1072962: Upgrade to HAL 2.2.0.Beta4
Merge pull request #6009 from bstansberry/WFLY-3077

[WFLY-3077] Strip [] from command line param values
Merge pull request #5962 from fbogyai/JBQA-8764-wildfly

[JBQA-8764] DatabaseLoginModule test which uses replaceable datasource
[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