Merge branch 'ie11-fix-security-dashboard' into 'master'

Add Object.entries polyfill for IE11 compatibility

See merge request gitlab-org/gitlab-ce!28732

app/assets/javascripts/commons/polyfills.js

@@ -6,6 +6,7 @@ import 'core-js/fn/array/from';
 import 'core-js/fn/array/includes';
 import 'core-js/fn/object/assign';
 import 'core-js/fn/object/values';
+import 'core-js/fn/object/entries';
 import 'core-js/fn/promise';
 import 'core-js/fn/promise/finally';
 import 'core-js/fn/string/code-point-at';