added auth listener before calling listen

Author: Salakar

lib/modules/auth.js

@@ -24,27 +24,17 @@ export default class Auth extends Base {
     // start listening straight away
     // generally though the initial event fired will get ignored
     // but this is ok as we fake it with the getCurrentUser below
+    FirestackAuthEvt.addListener('listenForAuth', this._onAuthStateChanged.bind(this));
     FirestackAuth.listenForAuth();
 
     this.getCurrentUser().then((u: Object) => {
       this._onAuthStateChanged({ authenticated: !!u, user: u || null });
-      this._startListening();
     }).catch(() => {
       // todo check if error contains user disabled message maybe and add a disabled flag?
       this._onAuthStateChanged({ authenticated: false, user: null });
-      this._startListening();
     });
   }
 
-  /**
-   * Internal function begin listening for auth changes
-   * only called after getting current user.
-   * @private
-   */
-  _startListening() {
-    FirestackAuthEvt.addListener('listenForAuth', this._onAuthStateChanged.bind(this));
-  }
-
   /**
    * Internal auth changed listener
    * @param auth