High: cib: allow setting permanent remote-node attributes
High: xml: Update xml validation to allow '<node type=remote />'
Low: pengine: properly handle remote-node without connection resource.

Now that we allow remote-nodes into the node section, it is possible
to have a remote-node that does not map to a connection resource. When
this condition occurs, these nodes are treated as offline baremetal nodes.
Low: cts: test setting/removing remote-node permanent attributes
Low: pengine: Do not fence remote-node entries left over in the node section that have no connection rsc
Low: pengine: Regression test for stale leftover remote-node <node> entries
Merge pull request #467 from davidvossel/remote-node-attr

permanent remote-node attributes