New Matcha/Captcha Module in BlueBox

BlueBox coders will be interested to note a new captcha/matcha module, which is configured as follows:

Basically, it uses JS to hook into an image to display the captcha (so it can be used for caching). it's called using bb_captcha::init()

e.g.

<img src="" id="matcha-img" />
<!--:class:bb_matcha:init:-->

it takes an optional "where" parameter to specifiy the img ID if different:

<img src="" id="matcha-custom-img" />
<!--:class:bb_matcha:init|matcha-custom-img:-->

the matcha is checked as normal via the $_SESSION['matcha'] value.