Squashed commit of the following:

commit 9acb9bf06d1a465f9fd72c1ad4f0c638d8226f82
Merge: 4b46073 bfcfc39
Author: Mattt Thompson <m@mattt.me>
Date:   Fri Mar 14 13:03:28 2014 -0400

    Merge branch 'zh-Hans' of github.com:croath/articles into croath-zh-Hans

commit bfcfc39ce8f57062a7bda1d25ccaf8e9cb1d2f67
Author: Croath <croathliu@gmail.com>
Date:   Wed Mar 12 19:04:00 2014 +0800

    finished

commit 6e33d72b5b1cb096f04f618c0e8fe4da0a4f458b
Author: Croath <croathliu@gmail.com>
Date:   Wed Mar 12 13:24:57 2014 +0800

    2nd step

commit 7d74b4403006dfc41ecd17eedd9763d75b647c64
Author: Croath <croathliu@gmail.com>
Date:   Wed Mar 12 03:02:32 2014 +0800

    half translation