Wordpress Integration for AJAXChat-Chat 0.8.7

Features a clean integration using only the following integration files.
* chat/lib/custom.php
* chat/lib/class/CustomAJAXChat.php
* chat/lib/template/loggedOut.html

This is based on the integration developed by utan (http://vcomputadoras.com/ajaxchat-wordpress-integration/) with the following changes.
* uses user_login instead of display_name to maintain unique usernames
* does not need any of the javascript changes made by utan.
* added support for channels.php, Wordpress is not a forum, this seemed appropriate.
* added registration and remember password links to AHAX-Chat login page.

This has also been completed for the testing branch.