Save torrent list sort order in local storage

src/webui/www/public/scripts/mocha-init.js

@@ -22,6 +22,13 @@ if (typeof localStorage == 'undefined') {
     }
 }
 
+function getLocalStorageItem(name, defaultVal) {
+    val = localStorage.getItem(name);
+    if (val === null || val === undefined)
+        val = defaultVal;
+    return val;
+}
+
 initializeWindows = function() {
 
     function addClickEvent(el, fn) {