message: [changelog] 0.11.2
diff: ## Changelog
  +### [0.11.2](https://github.com/youzan/vant/tree/v0.11.2)
  +`2017-11-24`
  +
  +**Improvements**
  +- Icon: add seven new icons [\#351](https://github.com/youzan/vant/pull/351) [@w91](https://github.com/w91)
  +
  ### [0.11.1](https://github.com/youzan/vant/tree/v0.11.1)
  `2017-11-24`
  