upgraded to express 3.x, converted jade templates, and worked out array notation for articles/exercises

test/node_modules/express/lib/middleware.js

@@ -0,0 +1,33 @@
+
+/**
+ * Module dependencies.
+ */
+
+var utils = require('./utils');
+
+/**
+ * Initialization middleware, exposing the
+ * request and response to eachother, as well
+ * as defaulting the X-Powered-By header field.
+ *
+ * @param {Function} app
+ * @return {Function}
+ * @api private
+ */
+
+exports.init = function(app){
+  return function expressInit(req, res, next){
+    req.app = res.app = app;
+    if (app.settings['x-powered-by']) res.setHeader('X-Powered-By', 'Express');
+    req.res = res;
+    res.req = req;
+    req.next = next;
+
+    req.__proto__ = app.request;
+    res.__proto__ = app.response;
+
+    res.locals = res.locals || utils.locals(res);
+
+    next();
+  }
+};