Google Material design UI Kit library
This script should not be not be installed directly. It is a library for other scripts to include with the meta directive // @require https://update.greasyfork.org/scripts/40244/697886/MDUIKit.js
这是基于 Google Material design 设计规范而形成的一套自有 UI library，详细请看 https://github.com/kenshin/mduikit-ui