Merge pull request #5 from typecho/master

update
Merge pull request #6 from typecho/master
Merge pull request #7 from typecho/master

同步最新
Merge pull request #8 from typecho/master

更新
Merge pull request #9 from typecho/master

同步最新
添加插件管理快捷方式
Merge pull request #146 from shingchi/master

添加后台插件管理快捷方式