* Update JS build
- Change rollup build from API to config file
- Change output dir from lib to dist
- Update lib to dist path in related files
- Update dependencies
- Add banner comment to bundles
- Add unminified plugin bundles
* Update docs with v5 version lock and dist path
* Update docs to reference minified themes
* Clean up docs
* Update CSS build
- Change CSS build from API to CLI
- Change output dir from lib to dist
- Update lib to dist path in related files
- Update dependencies
- Add sourcemaps
* Update dependencies
* Clean up package.json and add keywords
* Fix rimraf globs on Windows
* Fix PostCSS CLI glob on Windows
* Update test-related dependencies
* Update emoji
* Add engines prop to package.json
BREAKING: The new project layout might break in some tooling setups.
We've added an exports field to `package.json` to specify where
statements like `import ... from 'docsify'` will import from, and left
the `main` and `unpkg` fields as-is for backwards compatibility with the
global <script> import method. Most people who use a non-module
`<script>` tag to import Docsify will not notice a difference. Anyone
else who is importing Docsify into a specilized build setup using
`import` statements has a chance of being broken, so we've marked this
as BREAKING.
