修改:         _layouts/default.html
	删除:         _layouts/default.html~
	删除:         _layouts/image.jpg
	删除:         _posts/2014-11-17-hello-world.html~
	删除:         _posts/image.jpg
	删除:         image.jpg
	新文件:       image/cjiejie.png
	重命名:       image/image.png -> image/image0.png