jQuery 1.12 does not load in Zombie 2.5.1.

This is caused by:

support.createHTMLDocument = function () {
        if (!document.implementation.createHTMLDocument) {
            return false;
        }
        var doc = document.implementation.createHTMLDocument('');
        doc.body.innerHTML = '<form></form><form></form>';
        return doc.body.childNodes.length === 2;
    }();

The doc doesn't have a body, so innerHTML is set on undefined. The fix would be to make sure there's a body.

I'm not sure if #2154 indicates this was purposeful or not. We have a big matrix of tests for new and old versions of jQuery, along with build tools that need to work in a lot of different versions of node.

I wouldn't be able to use Zombie to verify CanJS + jQuery 1.12 in a node 0.12 environment. Yeah ... an odd situation. Please let me know what you think. Thanks!