jQuery(document).ready(function($){

  $j = jQuery;



>>>>
Uncaught TypeError: $ is not a function(anonymous function) @ app.js?ver=1.0.0:1

>>>>
Which refers to: $(document).ready(function($){


Form settings:
AJAX	
  Load and save form builder page with AJAX	

Is checked. 

functions.php
	wp_deregister_script( 'jquery' );
  wp_register_script( 'jquery', ( 'http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js' ), false, null, true );
  wp_enqueue_script( 'jquery' );

app.js
$(document).ready(function($){
  $j = jQuery;