Fix #328 "$fr-roles not working (is an empty list)"
Fix #328 "$fr-roles not working (is an empty list)"

This was fully dependent on #336. In this commit we just have additional support for xxforms:default.

wesley1001/orbeon-forms,evlist/orbeon-forms,brunobuzzi/orbeon-forms,martinluther/orbeon-forms,wesley1001/orbeon-forms,evlist/orbeon-forms,martinluther/orbeon-forms,brunobuzzi/orbeon-forms,ajw625/orbeon-forms,brunobuzzi/orbeon-forms,orbeon/orbeon-forms,wesley1001/orbeon-forms,ajw625/orbeon-forms,tanbo800/orbeon-forms,evlist/orbeon-forms,wesley1001/orbeon-forms,ajw625/orbeon-forms,orbeon/orbeon-forms,brunobuzzi/orbeon-forms,martinluther/orbeon-forms,orbeon/orbeon-forms,ajw625/orbeon-forms,orbeon/orbeon-forms,evlist/orbeon-forms,joansmith/orbeon-forms,joansmith/orbeon-forms,tanbo800/orbeon-forms,evlist/orbeon-forms,martinluther/orbeon-forms,joansmith/orbeon-forms,joansmith/orbeon-forms,tanbo800/orbeon-forms,tanbo800/orbeon-forms