remove = in if statement

move expire in line 154 to 247, because it will cause session_cookie not writen to explorer

edit mobile regular expression ; add 184 Section No.

fix cookie not work in IE

bugfix: if a form field type is bool, valid Required should always return true instead of return its value.

Added to input.go: AcceptHtml, AcceptsXml and AcceptsJson functions which check the header agains a regex for simpler mult-content-type handling.

当页面放置一段时间，验证码将从缓存中失效。当用户再来刷新验证码将出现验证码404。对于reload操作应该直接生成验证码。

add missed LICENSE of captcha

Fix the wrong parameter bug in ledis session support cause build failure

code style simplify

Added support to parse slices of ints and strings in ParseForm func