ken wills <> in WildFly

WFLY-9307 use EAP7.0 version string in mixed domain tests

WFLY-8813 Move javax.json module to WildFly Core

WFLY-8723 move elytron tests to core

move elytron from servlet feature pack to core

WFLY-6616 fix clobbering of slave host.xml after we set ignore-unused-configuration="false".99% of this was Kabir

WFLY-5227 security-manager is now supplied by wildfly-core

  1. … 10 more files in changeset.
WFLY-6053 - Metaspace defaults