[WFLY-2984] Add 1.4 schema to WildFly 8. Also added a missing test for older schema versions.
Merge pull request #6582 from jamezp/WFLY-2984

[8.x] [WFLY-2984] Add 1.4 schema to WildFly 8. Also added a missing test for o...
WFLY-3623 for 8.x