Release 0.4.0

Changed

• Breaking (HTTP+COMIT API): Change the identity for the Bitcoin Ledger from a public key hash to a public key. This change impacts the HTTP and the COMIT API of cnd.
• Breaking (COMIT API): Replace Ethereum network with Ethereum chain_id
• cnd no longer automatically generates a config file, but instead simply defaults to what it would have written to the file on first startup.
• Make expiries optional when sending a swap request, with defaults:
  • 24 hours later for alpha ledger.
  • 12 hours later for beta ledger.
• Breaking (Config file format): Expand http_api section in config file to contain both the socket and CORS settings.

Added

• Return Ethereum chain_id on the HTTP API.
• Support Ethereum chain_id in the Swap Request (HTTP API).
• Ability to set CORS allowed origins through the configuration file.
• Added command line option --dump-config to print the running configuration to stdout.

Fixed

• Error responses now properly identify themselves as application/problem+json. They have been conforming to this format for a while already, we just never set the Content-Type header properly. From now on, applications can fully rely on the error format!