apache/wicket — pull request #68 by l0rdn1kk0n (2013-12-13 07:29:01+00:00)
Title: increase "randomness" and reduce predictability of CaptchaImageResource rendered images

i don't know whether you want to merge it into wicket-6.x or not because there is a behavior change in `CaptchaImageResource`. It now uses `SecureRandom` instead of `Random`, which calls the underlying OS' RNG for his seed.