fix webview dialog not dismissed on android

Author: dionsake

android/src/main/java/io/fullstack/oauth/OAuthManagerFragmentController.java

@@ -126,7 +126,7 @@ public void run() {
                       (OAuthManagerDialogFragment) fragmentManager.findFragmentByTag(TAG);
 
               if (frag != null) {
-                  //frag.dismissAllowingStateLoss();
+                  frag.dismissAllowingStateLoss();
               }
           }
       });
@@ -392,4 +392,4 @@ public void run() {
   public String getCallbackUrl() {
     return this.callbackUrl;
   }
-}
+}