menu more and tools

- items: allow 'upg' to be an array
- filter: fixed logic error in checks
- Markup: prevent handling of [menu], as PageTemplate is nyi
- Power: advanced features (hide reagents or sellprice; recoloring,
  renaming, iconizing of links)
- search: side-icon for titles
- smarty: added template-vars to cache (has to be fixed sooner or later)

- identify as HTML5 (fixed a strange bug with displaced list-pegs)
- removed several typos

static/widgets/searchbox/searchbox.js

@@ -0,0 +1,37 @@
+var SearchBox = new function () {
+    function bindEvents() {
+        $("form.search").submit(onSubmit);
+        $("form.search a").attr("href", "javascript:;").click(onClick);
+    }
+
+    function onSubmit() {
+        var val = this.elements.search.value;
+        if (!$.trim(val)) {
+            return false;
+        }
+    }
+
+    function onClick() {
+        $("form.search").submit();
+        return false;
+    }
+
+    $(document).ready(bindEvents);
+};
+
+if (!Function.prototype.bind) {
+    Function.prototype.bind = function () {
+        var
+            c = this,
+            a = $WH.$A(arguments),
+            b = a.shift();
+
+        return function () {
+            return c.apply(b, a.concat($WH.$A(arguments)))
+        };
+    }
+}
+
+function isset(a) {
+    return typeof window[a] != "undefined";
+}