nginx使用ssl模块配置HTTPS支持

参考：

http://www.cnblogs.com/yanghuahui/archive/2012/06/25/2561568.html

http://www.cnblogs.com/tintin1926/archive/2012/07/12/2587311.html

http://www.linuxidc.com/Linux/2013-08/88271.htm

http://blog.csdn.net/ztclx2010/article/details/6896336

http://www.cnblogs.com/yun007/p/3739182.html