Update gitignore (sorry)

electron/node_modules/xmlbuilder/lib/XMLUserDataHandler.js

@@ -0,0 +1,27 @@
+// Generated by CoffeeScript 2.4.1
+(function() {
+  var OperationType, XMLUserDataHandler;
+
+  OperationType = require('./OperationType');
+
+  // Represents a handler that gets called when its associated
+  // node object is being cloned, imported, or renamed.
+  module.exports = XMLUserDataHandler = class XMLUserDataHandler {
+    // Initializes a new instance of `XMLUserDataHandler`
+
+    constructor() {}
+
+    // Called whenever the node for which this handler is 
+    // registered is imported or cloned.
+
+    // `operation` type of operation that is being performed on the node
+    // `key` the key for which this handler is being called
+    // `data` the data for which this handler is being called
+    // `src` the node being cloned, adopted, imported, or renamed
+    //       This is null when the node is being deleted.
+    // `dst` the node newly created if any, or null
+    handle(operation, key, data, src, dst) {}
+
+  };
+
+}).call(this);