SWITCHYARD-1728 add support for editing 1.0 and 1.1 models; SWITCHYARD-1795 filter list of available library versions

https://issues.jboss.org/browse/SWITCHYARD-1728
https://issues.jboss.org/browse/SWITCHYARD-1795

SWITCHYARD-1795 could potentially have merge conflicts with SWITCHYARD-1728.  Hope you don't mind me lumping them both together here.