完善插件信息
Update plugin-mathjax@0.0.6
Fix GitbookIO/editor#136: update highlight.js@8.2.0
Bump version to 1.0.3
Add changelog for version 1.0.3
fix radio input uncheck failed
Merge pull request #435 from markcxz/master

fix radio input uncheck failed
Merge branch 'master' of github.com:GitbookIO/gitbook