Squashed commit of the following:

commit 8895283a12007dd990210f415207899e5c4f7263
Author: unknown <Jobin.Zhang@YT00189-234.augmentum.com.cn>
Date:   Tue Sep 10 16:36:01 2013 +0800

    this is the sencond change

commit ebef19b91196e1b5566d2679c9a447b405c0797d
Author: unknown <Jobin.Zhang@YT00189-234.augmentum.com.cn>
Date:   Tue Sep 10 16:32:20 2013 +0800

    this is the first change.