Add textSigle as a fetchable value for plugins

Change-Id: I53d25f153f159efed9863c575e8e6fa668618403
diff --git a/dev/demo/plugin-serverdemo.js b/dev/demo/plugin-serverdemo.js
index 171e9de..6540591 100644
--- a/dev/demo/plugin-serverdemo.js
+++ b/dev/demo/plugin-serverdemo.js
@@ -44,7 +44,12 @@
     'onClick' : {
       'action' : 'addWidget',
       'template' : 'http://localhost:3003/demo/plugin-client.html',
-    }
+      "permissions": [
+        "forms",
+        "scripts",
+        "downloads"
+      ]
+    },
   }]
 }];