Changes since 1.7.8 (b91654db):

    new flags:

      * `-addr` to specify the interface (or :21303 default)
      * `-nokeys` to drop all keystore support (useful for open RPC)
      * `-allowip` to restrict RPC to specific IP addresses (both http and websocket)
      * `-offline` to access wallet or chain without networking
      * `-behindproxy` (EXPERIMENTAL) to use X-FORWARDED-FOR to find RPC Client IP
      * `-socks` to use SOCKS proxy for rpc client connections (attach, monitor)
      * `-ethereum` to connect to the Ethereum network! (experimental!)

    improvements:

      * uses go modules for default 'make' build
      * pure go for default 'make' build (optional cgo for usb, tracers)
      * increased default timeout for RPC client connects (attach) 30 seconds!
      * split rpc and rpcclient packages, nice!
      * CI tests: do fast tests first, then slow ones (downloader, fetcher)
      * start testing -ethereum flag (no dao fork support at the moment,
        sync issues, experimental!)
      * update format of `aquachain account list` and `aquachain account new`
      * -allowip uses CIDR notation, for one IP, use /32 like: `192.168.1.5/32`
      * during synchronization, show time of block in log
      * if inserting one block, show miner address instead of time