CE upstream

CE changes https://gitlab.com/gitlab-org/gitlab-ce/compare/d636efbe26ee51030bb108d889c2ef867570358a...0c36b810abede73b3cf59f951e7467dbac54ec98?expand_all_diffs=1

app/assets/javascripts/network/network_bundle.js

@@ -9,6 +9,8 @@
 (function() {
   $(function() {
+    if (!$(".network-graph").length) return;
+
     var network_graph;
     network_graph = new Network({
       url: $(".network-graph").attr('data-url'),