3 Commits

Author	SHA1	Message	Date
slene	91d75e8925	add readme for captcha, and enhanced performance	2014-01-17 12:07:30 +08:00
slene	91cbe1f29b	add some comments for captcha	2014-01-16 21:34:59 +08:00
slene	f419c12427	add captcha util	2014-01-16 20:53:35 +08:00