Use FreeMarer auto-escaping feature

[ddekany]

You got this old blog entry about "Default HTML-escape using Freemarker" at https://watchitlater.com/blog/2011/10/default-html-escape-using-freemarker/, which points to this GitHub project. Since then, FreeMarker has introduced escaping by default: http://freemarker.org/docs/dgui_misc_autoescaping.html. As some people find and apply that blog entry, it would be good if you can add a note that points out that now the recommended way of doing this is different. Thanks!