Wait for storage on launch

js/panel_controller.js

@@ -141,12 +141,14 @@
     };
 
     extension.onLaunched(function() {
+        storage.onready(function() {
             if (textsecure.registration.isDone()) {
                 openInbox();
             } else {
                 extension.install();
             }
         });
+    });
 
     // make sure windows are cleaned up on close
     extension.windows.onClosed(function (windowId) {