Group AJAX validations don't work.

[matthewtuck]

function ajaxHelper(userOpts, r) {

  var defaults = {
        method: "GET",
        timeout: 15 * 1000
      },
      exec = r._exec,
      promptContainer = r.triggerField || r.field,

The code above uses r.field which is a field for field validations, but a function for group validations, so it doesn't work at all for the latter.

[jpillora]

fixed