don't use __proto__, closes socketio#170

Author: yields

index.js

@@ -1,4 +1,4 @@
 
 module.exports = process.env.EIO_COV
-  ? require('./lib-cov/engine.io')
-  : require('./lib/engine.io');
+  ? require('./lib-cov')
+  : require('./lib');

lib/engine.io.js

@@ -153,18 +153,3 @@ exports.attach = function (server, options) {
 
   return engine;
 };
-
-/**
- * Invoking the library as a function delegates to attach
- *
- * @param {http.Server} server
- * @param {Object} options
- * @return {Server} engine server
- * @api public
- */
-
-module.exports = function() {
-  return exports.attach.apply(this, arguments);
-};
-
-module.exports.__proto__ = exports;

lib/index.js

@@ -0,0 +1,26 @@
+
+/**
+ * Module dependencies.
+ */
+
+var engine = require('./engine.io')
+  , util = require('./util');
+
+/**
+ * Invoking the library as a function delegates to attach
+ *
+ * @param {http.Server} server
+ * @param {Object} options
+ * @return {Server} engine server
+ * @api public
+ */
+
+exports = module.exports = function() {
+  return this.attach.apply(this, arguments);
+};
+
+/**
+ * Merge engine.
+ */
+
+util.merge(exports, engine);

lib/util.js

@@ -0,0 +1,13 @@
+
+/**
+ * Merge `a` <= `b`
+ *
+ * @param {Object} a
+ * @param {Object} b
+ * @return {Object} b
+ */
+
+exports.merge = function(a, b){
+  for (var k in b) a[k] = b[k];
+  return a;
+};