v3.0.5

Minor fix and improvement :

#49

• Show messages when starting executing the script.

#51

• Update config format to the latest version in darknode.
• Remove --config flag form the update command to avoid conflicts in the config file.
• Show messages to tell if nodes have successfully been started/stopped/restarted.
• Minor tweak with the darknode installation script.
• Fix incorrect bootstrap addresses on testnet and devnet.