cinemagraph 图片的制作方法：
http://cinemagraphs.com/
http://www.labnol.org/software/cinemagraph-tutorial/19453/
http://www.labnol.org/software/video-as-animated-gif/18160/
http://www.netmagazine.com/tutorials/create-awesome-cinemagraph-photoshop
http://iphone4.tw/forums/showthread.php?t=133005
