Adding first set of changes for bug onos-5071
Addressed review comments
Addressed review comments for patch-2
Addressed review comments for patch-3
Fixed broken "show intent" on topo view.

Change-Id: Ie76deca917d6cd6c98d121135e53b9093b5ed8ee
diff --git a/web/gui/src/main/webapp/tests/app/view/topo/topoTraffic-spec.js b/web/gui/src/main/webapp/tests/app/view/topo/topoTraffic-spec.js
index 16686e1..4febcb1 100644
--- a/web/gui/src/main/webapp/tests/app/view/topo/topoTraffic-spec.js
+++ b/web/gui/src/main/webapp/tests/app/view/topo/topoTraffic-spec.js
@@ -49,6 +49,7 @@
             'requestTrafficForMode',
             'addHostIntent',
             'addMultiSourceIntent',
+            'removeIntent',
         ])).toBeTruthy();
     });