Copied escapeXml.groovy from blog.
Copied escapeXml.groovy from blog.

Copied escapeXml.groovy from "Inspired by Actual Events" blog post "Escaping XML with Groovy 2.1" (http://marxsoftware.blogspot.com/2013/07/escaping-xml-with-groovy-21.html).
dustinmarx/xmlutilities