Merge branch 'closedown-4.2.x' into candidate-4.2.2

Signed-off-by: Richard Chapman <rchapman@hpccsystems.com>

esp/files/scripts/DFUQueryWidget.js

@@ -297,6 +297,13 @@ define([
             });
             this.initWorkunitsGrid();
             this.selectChild(this.workunitsTab, true);
+
+            this.filter.on("clear", function (evt) {
+                context.refreshGrid();
+            });
+            this.filter.on("apply", function (evt) {
+                context.refreshGrid();
+            });
         },
 
         initTab: function() {