define custom dojo modules with define() instead of require(), update startup module dependencies

js/PrefFeedStore.js

@@ -0,0 +1,20 @@
+define(["dojo/_base/declare", "dojo/data/ItemFileWriteStore"], function (declare) {
+
+	return declare("fox.PrefFeedStore", dojo.data.ItemFileWriteStore, {
+
+		_saveEverything: function(saveCompleteCallback, saveFailedCallback,
+								  newFileContentString) {
+
+			dojo.xhrPost({
+				url: "backend.php",
+				content: {op: "pref-feeds", method: "savefeedorder",
+					payload: newFileContentString},
+				error: saveFailedCallback,
+				load: saveCompleteCallback});
+		},
+
+	});
+
+});
+
+