ISPN-3947 Make it compile with JDK8

* Module name calculation in javascript driven Server/AS/Wildfly now works with both JDK7 and JDK8 by trying a split/join and if it does not work, use a replace.
* `spliterator()` method name clashes with a new spliterator() method introduced in java.util.Collection for JDK8, so name it differently.
* Disable animal sniffer plugin since it does not yet work with JDK8. Even latest version 1.10 still fails.