update version to 0.3.0
update version to 0.3.0

- Readme
  - Add
    - Upai readme

- Util
  - Refactor
    - Split into several files according to function type

- Plugins
  - Manager
    - Refactor
      - Move bname, bhost and bpath flags to manager
  - Upai
    - Add
      - UPai cloud plugin

- Server
  - Web
    - Add
      - Add version in js url for disable cache

7sDream/rikka,7sDream/rikka,7sDream/rikka