v0.3.1

Added

• Graceful handling for common shutdown signals.
• A retry procedure for NAT/firewall traversal, activating when multiple protocols, common with the remote, are available.
• An external address resolver logic is now avoids repetitively sending STUN requests to unresponsive servers.

Changed

• NAT/firewall traversal logic was adjusted to better utilize socket interface provided by the OS.

Fixed

• Shutdown delay when traversal attempt was ongoing.
• A forward-compatibility bug manifesting in an falsely reported error if new unknown field appeared in Admin API response.