jaboutboul

Twilio = Object.create({})
Twilio.TwiML = {
  build: function(fn) {
    var prolog = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";
    var Buffer = function(level) {
      var buffer = "";
      var indent = function(i) { return new Array((i * 2) + 1).join(" ") }
      var level  = level || 1;
      var append = function(str) {
        buffer += indent(++level) + str + "\n";