update some packages and remove node_modules from repo

app/node_modules/xmlbuilder/lib/XMLDTDElement.js

@@ -1,35 +0,0 @@
-// Generated by CoffeeScript 1.10.0
-(function() {
-  var XMLDTDElement, XMLNode,
-    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
-    hasProp = {}.hasOwnProperty;
-
-  XMLNode = require('./XMLNode');
-
-  module.exports = XMLDTDElement = (function(superClass) {
-    extend(XMLDTDElement, superClass);
-
-    function XMLDTDElement(parent, name, value) {
-      XMLDTDElement.__super__.constructor.call(this, parent);
-      if (name == null) {
-        throw new Error("Missing DTD element name");
-      }
-      if (!value) {
-        value = '(#PCDATA)';
-      }
-      if (Array.isArray(value)) {
-        value = '(' + value.join(',') + ')';
-      }
-      this.name = this.stringify.eleName(name);
-      this.value = this.stringify.dtdElementValue(value);
-    }
-
-    XMLDTDElement.prototype.toString = function(options) {
-      return this.options.writer.set(options).dtdElement(this);
-    };
-
-    return XMLDTDElement;
-
-  })(XMLNode);
-
-}).call(this);