Config - contract addresses (in code)

[AnthonyAkentiev]

Config

1. Please add some json or config file to code.
2. Code should automatically select CORRECT network (current) from MetaMask.
   Write some wrapper please.

Example:

// JSON:
main_contract_address: {
  mainnet: '0x00BDb5699745f5b860228c8f939ABF1b9Ae374eD',
  rinkeby: '0x1522900B6daFac587d499a862861C0869Be6E428'
},

// Usage example:
a = config.getAddress('main_contract_address')
...

Autodetection

1. DApp should autodetect MetaMask network and use it.
2. If current network is not supported -> "Current Ethereum network is not supported. Please use Kovan or Rinkeby testnets"