NodeJS 框架 Express 从 3.0升级至4.0的新特性
[原文地址：√https://scotch.io/bar-talk/expressjs-4-0-new-features-and-upgrading-from-3-0]
首先是升级的中间件如下：
| Express 3.0 Name | Express 4.0 Name |
| bodyParser | body-parser |
| compress | compression |
| cookieSession | cookie-session |
| logger | morgan |
| cookieParser | cookie-parser |
| session | express-session |
| favicon | static-favicon |
| response-time | response-time |
| error-handler | errorhandler |
| method-override | method-override |
| timeout | connect-timeout |
| vhost | vhost |
| csrf | csurf |
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