Added Map Dialog
Added Map Background
Prevent click on node drag event

Change-Id: Ibb13085e3aa51eae49a2017251486f00d52f6265
diff --git a/web/gui/src/main/webapp/app/fw/svg/svgUtil.js b/web/gui/src/main/webapp/app/fw/svg/svgUtil.js
index 0f375e2..60a8be1 100644
--- a/web/gui/src/main/webapp/app/fw/svg/svgUtil.js
+++ b/web/gui/src/main/webapp/app/fw/svg/svgUtil.js
@@ -104,6 +104,8 @@
                 }
             })
             .on('dragend', function(d) {
+                d3.event.sourceEvent.preventDefault();
+
                 if (d.dragStarted) {
                     d.dragStarted = false;
                     if (!dragged(d)) {