Code snippet to load custom messages for jQuery validation plugin within the Awesome Surveys WordPress plugin

snippet.php

<?php
/*
Plugin Name: Code With WP Custom Snippets
Plugin URI: http://codewithwp.com/
Description: This plugin holds custom code snippets that interact with both themes and plugins related to this website.
Author: Thomas Griffin
Author URI: http://thomasgriffinmedia.com/
Version: 1.0.0
License: GNU General Public License v2.0 or later
License URI: http://www.opensource.org/licenses/gpl-license.php
*/

/*
	Copyright 2012	 Thomas Griffin	 (email : thomas@thomasgriffinmedia.com)

	This program is free software; you can redistribute it and/or modify
	it under the terms of the GNU General Public License, version 2, as
	published by the Free Software Foundation.

	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with this program; if not, write to the Free Software
	Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
*/

// ======================================================================= //
//          PLACE ALL OF YOUR CUSTOM CODE BELOW THIS COMMENT BLOCK         //
// ======================================================================= //


 add_filter( 'the_content', 'wwm_catch_as_shortcode', 5, 1 );
 add_action( 'wp_enqueue_scripts', 'wwm_register_validation_messages', 20, 0 );

 function wwm_catch_as_shortcode( $content ) {

  if ( strpos( $content, '[wwm_survey id=' ) ) {
   wp_enqueue_script( 'validation-messages-nl' );
  }
  return $content;
 }


 function wwm_register_validation_messages() {
  wp_register_script( 'validation-messages-nl', plugins_url( 'messages_nl.js', __FILE__ ), array( 'jquery', 'jquery-validation-plugin' ), '1.13.1', true );
 }


// ======================================================================= //
//          PLACE ALL OF YOUR CUSTOM CODE ABOVE THIS COMMENT BLOCK         //
// ======================================================================= //

add_filter( 'http_request_args', 'cwwp_hide_plugin_updates', 5, 2 );
/**
 * Removes the plugin from repo update checks to avoid errant updates.
 *
 * @since 1.0.0
 * @link http://markjaquith.wordpress.com/2009/12/14/excluding-your-plugin-or-theme-from-update-checks/
 *
 * @param array $r The request data
 * @param string $url The URL which is being pinged for updates
 * @return array $r The amended request data
 */
function cwwp_hide_plugin_updates( $r, $url ) {

	/** If the URL is not from the WordPress API, return the request */
	if ( 0 !== strpos( $url, 'http://api.wordpress.org/plugins/update-check' ) )
		return $r;

	/** Unset our plugin if it exists */
	$plugins = unserialize( $r['body']['plugins'] );
	unset( $plugins->plugins[plugin_basename( __FILE__ )] );
	unset( $plugins->active[array_search( plugin_basename( __FILE__ ), $plugins->active )] );
	$r['body']['plugins'] = serialize( $plugins );

	/** Return the request */
	return $r;

}