added default plugin icon plus JSInterface method

mobile/src/com/cradle/iitc_mobile/IITC_JSInterface.java

@@ -178,4 +178,15 @@ public class IITC_JSInterface {
             }
         });
     }
+
+    // some plugins may have no specific icons...add a default icon
+    @JavascriptInterface
+    public void addPane(final String name, final String label) {
+        mIitc.runOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                mIitc.getNavigationHelper().addPane(name, label, "ic_action_new_event");
+            }
+        });
+    }
 }