Features AntiXSS Library in version 2011 framework

These are the portions of the external AntiXSS library that have been incorporated into ASP.NET 4.5:

(1)HtmlEncode, HtmlFormUrlEncode, and HtmlAttributeEncode

(2)XmlAttributeEncode and XmlEncode

(3)UrlEncode and UrlPathEncode

(4)CssEncode