Topo2: Topo2SelectService now maintains de/selecting nodes and displaying the details panel

Change-Id: I29d2476d8615263d79304636df6ca1664e7dc76b
diff --git a/web/gui/src/main/webapp/app/view/topo2/topo2Force.js b/web/gui/src/main/webapp/app/view/topo2/topo2Force.js
index e1e392b..fc3e5b739 100644
--- a/web/gui/src/main/webapp/app/view/topo2/topo2Force.js
+++ b/web/gui/src/main/webapp/app/view/topo2/topo2Force.js
@@ -46,8 +46,9 @@
         t2bgs.region = t2rs;
         t2ls.init(svg, uplink, dim, zoomer, opts);
         t2bcs.addLayout(t2ls);
-        t2rs.layout = t2ls;
         t2ss.init(svg, zoomer);
+        t2ss.region = t2rs;
+        t2rs.layout = t2ls;
 
         navToBookmarkedRegion($loc.search().regionId);
     }