[WFLY-2420] Fix DeploymentFullReplaceHandler rollback handling of content repo
[WFLY-2425] Update slf4j version to forked version with concurrency fix
Set default option values before setting user provided values so defaults don't override
[WFLY-2402] fix clustered attribute transformer

* get the hornetq-server resource by reading context.readResource(address)
  instead of PathAddress.EMPTY_ADDRESS.
* update the testClusteredTo120() test to use a hornetq-server resource
  with 1 cluster-connection (and thus clustered) to make sure the
  warning is logged as expected if the user wants to set the clustered
  attribute to false
Remove the log4j dependency from the server and put it in logging where it belongs.
Add jboss-logmanager and slf4j binding for eclipse aether.
[WFLY-2218] Support being able to add individual classes from target/test-classes (or elsewhere) to the child first CL, and actually pass AdditionalInitialization through to the legacy controller
[WFLY-2238] Add model version 2.0.0 transformers to logging.
Move 1.1.0 transformers to the non-static methods.
Remove some deps leftovers & testsuite cleanup

 - unify surefire configuration
 - upgrade to newer surefire
 - move most of surefire configuration to plugin def section
 - unify basic testsuite by removing full & web configs
 - introduce -Phelp plugin when you need to pring debug help for TS
 - WFLY-2124 Revisit LDAP testing within the testsuite.