MODE 2065 - Ported ModeShape EAP kit to Wildfly 8

There are *a lot* of changes in the PR, so I'll highlight the important ones:
* upgraded all shared dependencies with Wildfly to the versions uses in Wildfly. Most notable of these was RestEasy 3.0.6, a major upgrade
* upgraded to Servlet API `3.1`. The build & test infrastructure (Jetty) was updated but the code remains binary compatible with `2.5` so that clients of the webapps won't have to necessarily update
* the Arquillian version was updated (via the JavaEE BOMs);
* there is a potential bug in the Wildfly - Infinispan subsytem integration - see https://community.jboss.org/thread/236623 for which a workaround was needed.