http://blog.csdn.net/maingalaxy/article/details/46013393
http://blog.csdn.net/dzl84394/article/details/7750586 rvm的安装
http://www.oschina.net/question/565065_134829 bosh介绍
http://www.cnblogs.com/gaojun/p/4153965.html
http://blog.csdn.net/maingalaxy/article/details/46013393