Recognize URLs and email addresses and convert them to links or "mailto" links

How to recognize URLs and email addresses and convert them to links or "mailto"

http://stackoverflow.com/questions/37684/how-to-replace-plain-urls-with-links
http://www.joe-stevens.com/2010/02/18/convert-all-static-text-email-addresses-to-mailto-links-using-jquery/
http://soapbox.github.io/jQuery-linkify/
http://stackoverflow.com/questions/37684/how-to-replace-plain-urls-with-links