Bookbank (v3.0.0)

onechain finally has a permanent database. You can turn on/off your node.js server freely. This release contains several updates as below:

• Adding levelDB for saving blockchain data permanently.
• Dockerized.
• Providing live demo via Ainize open-resource platform.
• Converting into ES6 format.
• Codes are more modulized.
  • Using module.js for preventing cyclic import.
  • types.js contains complex types like block, blockchain class and their methods.
  • crypto.js and utils.js do more work.
• Adding nodemon for running server continuously.
• Fixing default location about saving wallet.
• Distinguish dependencies and devDependences in package.json.