MODE-2143 Changed the default networking stack of ModeShape build to prefer IPv6

Changed the default networking stack to prefer IPv6, except in the
"integration/modeshape-jbossas-integration-tests" module that uses Arquillian
(which is limited to IPv4 on Windows; see JBPAPP-9281 for details) to run
EAP on IPv4. In that module, we also have to force our tests to use IPv4.