AS7-6538 Fix logging transformers to allow reverse controller tests to work
[AS7-6547] Upgrade Remoting to 3.2.15.GA
[AS7-6530] Improve JMX transformers - reject anything not supported in 7.1.x rather than silently discarding
Remove all unused imports
AS7-6527 Broken compatibilty for adding security-domain trough CLI
[AS7-6539] fix messaging transformers

* revert the transformation of the CLUSTERED attribute to be compatible
  with legacy versions. On new version, writing to the attribute is
  ignored
  - the attribute is again stored in the configuration (but remains
    deprecated)
* add a model fixer to the transformation tests to remove the
  description of messaging path resources with default values that are
  always created since 7.2.x (AS7-5417)
[AS7-6531] Reverse controller transformer checks for core model