Gregwar/Captcha — pull request #15 by lackovic10 (2014-03-17 17:29:25+00:00)
Title: Add the option of custom background images for the captcha

This PR updates the captcha library to enable custom background images for the captcha.

todo:
- [x] - add custom background image option

Related PR: https://github.com/Gregwar/CaptchaBundle/pull/81