修补了新版本的一些bug。

Update: In our effort to optimize we made two mistakes in 1.5.1, one related to feeds and one related to trackbacks and pingbacks. We’ve updated the download with 1.5.1.1 which corrects these bugs and a few others.

学校又限速了，文件传了2个小时还是在登录FTP，很是郁闷。