WFLY-4031

Hi!

Please take a look at proposed solution for: https://issues.jboss.org/browse/WFLY-4031

Changes includes:
* Changed http://java.sun.com/xml/ns/javaee to http://xmlns.jcp.org/xml/ns/javaee
* Standardized number of spaces per indent (4)
* Removed copy-paste comments in XML files