WFLY-3570: ee concurrency context handlers need to support concurrent setup/reset, splitting in setup and reset handlers
WFLY-69 throw ISE instead of NPE when extended persistence context is referenced from component not contained in stateful session bean.
Merge pull request #6519 from emmartins/WFLY-3570

WFLY-3570: ee concurrency context handlers need to support concurrent se...
Merge pull request #6530 from scottmarlow/WFLY-69_errorxpc

WFLY-69 throw ISE instead of NPE when extended persistence context is referenced from component not contained in stateful session bean.
[WFLY-457] Replace mod_cluster proxy-list attribute with list of outbound socket bindings

Conflicts:
	mod_cluster/extension/src/main/java/org/wildfly/extension/mod_cluster/ModClusterExtension.java
	mod_cluster/extension/src/test/resources/org/wildfly/extension/mod_cluster/subsystem_2_0-reject.xml
[WFLY-457] Restore proxy-list to be able to use EAP 6.x slaves