Changed IpInterfaceDaoHibernate to be tolerant of multiple interfaces
marked as primary in the database (since I was seeing this condition on
my system).
Added org.opennms.core.criteria.restrictions package to Karaf system
classpath.
Changed HideNodesWithoutLinksOperation so that it calls refresh()
instead of load(null).
Pulled the SelectionManager out of GraphContainer and put it into the
Application itself. Added ability to register the OnmsDaoContainer
instances as SelectionListener services.