add js for changelog sidebar
check feature / bug is nil
add changelog 2014-03-21
div height update
set minheight for div.main
import hightlight.js in docs.html
Merge pull request #117 from SunLn/7684_changelog_sidebar

7684 changelog sidebar
Merge pull request #119 from BluntBlade/master

修正没有进行url转义的pfop参数说明。
修正文本错误。