session url pattern

创建新分享 - render
`app.get('/session/create', session.new);`
创建新分享 - action
`app.post('/session/create', session.create);`
分享详细 - render
`app.get('/session/:id/', session.detail);`
编辑分享 - render
`app.get('/session/:id/edit', session.edit);`
编辑分享 - action
`app.post('/session/:id/edit', session.update);`
删除分享 - action
`app.del('/session/:id/', session.del);`