v4.0.0 beta

This is a pre-release, do not active v4.0.0 in production environment! Please download the v3.x version for production environment!

Any issue about this pre-release is welcomed! Issues and PRs here: https://github.com/mashirozx/Sakura2

sakura.4.0.0.zip is the theme, and please install the two depended plugins below.

v4.x 是测试版，功能还没做全，仅仅是希望大家帮忙测试一下浏览器兼容性，切勿在生产环境部署！生产环境请使用 v3.x 版。

关于新版的任何建议或 PR 都欢迎。4.0.0 版的使用和开发方法请阅读 README：https://github.com/mashirozx/Sakura2

sakura.4.0.0.zip 是主题文件，另外两个 zip 是主题依赖的插件，必装。