Move specialized (pretty) url generation back into Item_Model so that

we're not relying on overriding url::site() to do tricks around item
urls.  This means that you won't get item urls by doing
url::site("albums/37"), for example, but it also means that we won't
get pretty urls where we don't expect them (like in the action of a
<form> element).

Incidentally, this will help us move over to using the slug format
because if you've got a bad character in a url, the edit forms will
now work on it since they'll be id based.

modules/user/controllers/password.php

@@ -130,7 +130,7 @@ class Password_Controller extends Controller {
       $user->hash = null;
       $user->save();
       message::success(t("Password reset successfully"));
-      url::redirect("albums/1");
+      url::redirect(item::root()->url());
     } else {
       print $view;
     }