3.0 Small To-do Tips

[xiazeyu]

• add these two links to document, so that users can check whether their browsers support WebGL.
  例子在360阅览器中没效果 #40 增加更多console，在代码中实现对检测浏览器是否支持webgl。
  https://get.webgl.org/
• doc: https://github.com/EYHN/hexo-helper-live2d/blob/master/CONTRIBUTING.md 中仅更新版本时使用npm run changelog
• doc: https://github.com/EYHN/hexo-helper-live2d/blob/master/CONTRIBUTING.md 中修改带有歧义的 2. Make changes: clientJs only (serverJs skip)
• 将device.js同时加入dependeicies和devdependices
• use git pull --tag or sth., instead of just git pull may have better support on tags.
• chore: index.js 中更好的检测device.js 脚本是否存在的实现

function loadlive2d(id,modelurl,headPos) {
    head_pos = typeof headPos === 'undefined' ? 0.5 : headPos;
    initL2dCanvas(id);
    init(modelurl);
}

• window.loadlive2d = loadlive2d; at 427 line. in https://github.com/EYHN/hexo-helper-live2d/blob/master/src/main.js What does this code mean???
• does transformRect mean 鼠标事件？
• what does deviceToScreen mean?
• http://makaidong.com/kakinuma/171758_571358.html
• https://developer.mozilla.org/zh-CN/docs/Web/API/EventTarget/addEventListener
• headPos ???
• device.js 编译时将版本号加入insert.html 使得 npm run rel 时 bundle.js与device.min.js在html中同时具有版本号
• chore: 对照UgilyJs中的蜜汁WARNING修改代码
• chore: index.js 中代码注释
• chore: 注释注释注释！

[xiazeyu]

• 多余代码可删除