Fixed gotcha invoking app.param() callbacks once per route middleware. …

…Closes expressjs#638

lib/http.js

@@ -450,7 +450,7 @@ Server.prototype.configure = function(env, fn){
 // Generate routing methods
 
 function generateMethod(method){
-  Server.prototype[method] = function(path, fn){
+  Server.prototype[method] = function(path){
     var self = this;
 
     // Lookup
@@ -461,27 +461,10 @@ function generateMethod(method){
     }
 
     // Ensure router is mounted
-    if (!this.__usedRouter) {
-      this.use(this.router);
-    }
-
-    // Route specific middleware support
-    if (arguments.length > 2) {
-      var args = Array.prototype.slice.call(arguments, 1);
-      fn = args.pop();
-      (function stack(middleware){
-        middleware.forEach(function(fn){
-          if (Array.isArray(fn)) {
-            stack(fn);
-          } else {
-            self[method](path, fn);
-          }
-        });
-      })(args);
-    }
+    if (!this.__usedRouter) this.use(this.router);
 
     // Generate the route
-    this.routes[method](path, fn);
+    this.routes[method].apply(this, arguments);
     return this;
   };
   return arguments.callee;