Init environment and run

![2014-08-12 5 23 45](https://cloud.githubusercontent.com/assets/640578/3888697/5f183656-2203-11e4-9de6-edbb21d537a3.png)

flask 有个机制，我倾向于用他自己的机制来做这件事情...

```
    app.config.from_object('vilya.settings')
    app.config.from_pyfile('settings.cfg', silent=True)
    app.config.from_object(settings_override)
```