Fixed the modal event triggered multiple times

Fixed the modal event triggered multiple times
完善中文语言扩展

完善中文语言扩展
Merge improvements from de-DE to de-AT
Merge pull request #390 from CyBot/merge-de-localizations

Merge improvements from de-DE to de-AT
Merge pull request #388 from Lancezh/master

Fixed the modal event triggered multiple times && Improve the zh-CN.js