Squashed commit of the following:

commit fcb20cf5aad533581a744b1bce10de4e460f03bb
Author: Yunfei Zu <zuyunfei@gmail.com>
Date:   Tue Apr 23 17:09:38 2013 +0800

    complete

commit 5361e3ad23c571b538614586ec346d7de2f72a65
Author: Yunfei Zu <zuyunfei@gmail.com>
Date:   Mon Apr 22 18:55:42 2013 +0800

    editing blog

commit 7069522a00ea087bc4835b829283ce5fad59822c
Author: Yunfei Zu <zuyunfei@gmail.com>
Date:   Mon Apr 22 18:41:10 2013 +0800

    editing blog

commit e688985b3a6ed3acb09e78b85f4e237f4028b2c5
Author: Yunfei Zu <zuyunfei@gmail.com>
Date:   Mon Apr 22 16:40:18 2013 +0800

    new post git basic