Do not overwrite the default browser XMLHttpRequest

[AndrewRayCode]

This should be a separate object that does not modify the default browser object. We were hitting a very odd bug which boiled down to this. As we do not need the ajax functionality from jemplate, I will remove it from our version for now.

jemplate/src/js/xhr-ilinsky.js

Line 301 in f81af38

window.XMLHttpRequest = cXMLHttpRequest;