en to unknown language translation catalogue (7 entries)

[ctx: MainWindow]
en: Installation
target: 安装

[ctx: MainWindow]
en: Installation in progress, please wait...
target: 安装中，请稍候...

[ctx: QObject]
en: error
target: 错误

[ctx: QObject]
en: install failed!
target: 安装失败！

[ctx: QObject]
en: install succeed!
target: 安装成功！

[ctx: QObject]
en: tip
target: 提示

[ctx: QObject]
en: yes
target: 确定
