ONOS-1479 -- GUI - augmenting topology view for extensibility:
- Implemented server-side topo panel button descriptors, with overlay ability to remove core buttons and add custom buttons.

Change-Id: Id9ecc4c5e2d2db942232d2156ecf3bc858c0c61f
diff --git a/web/gui/src/main/webapp/app/view/topo/topoPanel.js b/web/gui/src/main/webapp/app/view/topo/topoPanel.js
index 9869f64..7db17f0 100644
--- a/web/gui/src/main/webapp/app/view/topo/topoPanel.js
+++ b/web/gui/src/main/webapp/app/view/topo/topoPanel.js
@@ -272,7 +272,7 @@
             .select('.actionBtns')
             .append('div')
             .classed('actionBtn', true);
-        bns.button(btnDiv, idDet + o.id, o.gid, o.cb, o.tt);
+        bns.button(btnDiv, idDet + '-' + o.id, o.gid, o.cb, o.tt);
     }
 
     var friendlyIndex = {