cli: updated the deployment-overlay help content
cli: made deployment-overlay command support the batch mode, fixed --deployments and --wildcards values tab-completion
[AS7-5922] Allow expressions for grouping-handler's type

* let grouping-handler's type attribute support expressions.
  In a cluster, only one node could be of LOCAL type (all the others are REMOTE)
* Reject a type attribute with an expression for legacy version of the
  messaging  management model
AS7-4795 convert datasources subsystem to Resource definition
Cleanup after conversion

* fixes after model compare
* Operation return type can be LIST & still use reply parameters
AS7-5914 fixing clustering unit test issues on IBM JDK
[AS7-5884] Maintain a reference count for deployment hashes deployed to the content repository.

This is to handle the case where the same deployment is deployed with the same name, to make sure
that a copy is kept in the repository if one is removed. Once all deployments are removed, the
content is removed.
Fix deregister not propagated to SSO cluster on Request.logout
AS7-5839 Make logging configuration and boot log file relative to serverBaseDir by default.
Override default value with system property value.
AS7-5839 Use File.separatorChar instead of front slash
AS7-5839  The jboss.server.base.dir option is the full path to the dir but resolves relative path
AS7-5939 Intermittent Failures in WeldJndiLookupTestCase
AS7-5943 fixing jboss-common_6_0.xsd schema validation issue on IBM JDK
AS7-5886 EJB container-transaction configuration need to include Timer method-intf
[JBQA-6319]: check that a bean gets removed even if it throws an exception in @PreDestroy
[AS7-5828] HttpService may fail to start due to already existing service
[AS7-5903] OSGi tests may incorrectly assume that a given service is available
AS7-5909 UnsupportedOperationException if a module's resource root defined in jboss-deployment-structure.xml does not exist
Correct my name
[AS7-5903] OSGi tests may incorrectly assume that a given service is available