This file implements the Captcha Images plugin.
It displays a captcha image through CaptchaValidated() and validates it in CaptchaValidated().
The image gets served by an srvc method (srvc_display_captcha() and the private/public keys get stored in the user's Session.
The core functionality was provided by Ben Franske and then converted and improved by Daniel HAHLER - http://daniel.hahler.de/ into a plugin for b2evolution.
Plugin ported to Quam Plures by Bush League Critic.
Based on hn_captcha Version 1.2 by Horst Nogajski
- hn_captcha is a fork of ocr_captcha by Julien Pachet
Quam Plures - http://quamplures.net/ Released under GNU GPL License - http://quamplures.net/license.html
