[WFLY-1942] Forward port core 1.5 xsd
[WFLY-2547] Forward port naming 1.4 xsd from EAP 6.2
[WFLY-2168] Forward port transactions 1.4 xsd
[WFLY-2549] Forward port web subsystem 1.5 xsd and parser from EAP 6.2
[WFLY-1942][WFLY-2547][WFLY-2168][WFLY-2549] Test parsing/marshalling of EAP 6.2 config docs