Possibility to make the captcha's input required
Possibility to make the captcha's input required

I added to the captcha's input text a required tag in order to oblige the user to fill it.

It could be disable with  'input_required' => false. 

For example:
Securimage::getCaptchaHtml(array('input_required' => false))
dapphp/securimage,dapphp/securimage,dapphp/securimage