Delete wiki/sw_develop/multimedia/ffmpeg_interface.
Fix bug.
Add ubuntu_libsdl1_2_dev_depend_error: 解决Ubuntu安装libsdl1.2-dev依赖错误.
Fix bug in wiki/tool/sitebuild/mikewiki.
Add date in every page.
Add some scripts in mikewiki.mkd.
Remove some useless comments.
Merge remote-tracking branch 'local/master'