Merge pull request #12 from zhulin3141/master

add ckeditor for typecho
Update README.md
Merge pull request #13 from zhulin3141/master

add ckeditor4typecho a skin config item
Merge pull request #14 from zhulin3141/master

add ueditor
Merge pull request #15 from zhulin3141/master

fix some config item
Merge pull request #16 from zhulin3141/master

add config item extraPlugins
add category in plugin meta info
Merge branch 'master' of https://github.com/zhulin3141/plugins