add app named 'dongwu',and write script of crawl content for dongwu.
get detail by each link.
Merge pull request #4 from hhhyde/master

merge code from master to dongwu
抓取dongwu信息
一次返回15～50条内容(json)
Merge branch 'dongwu' of https://github.com/hhhyde/mysite into dongwu
完成dw的Ajax跨域访问接口
Merge pull request #5 from hhhyde/dongwu

Dongwu