let there be noise

Big update with changes to the bitchat protocol to make it more reliable and and private messages more secure. This update is a breaking change for private messages.

New

• Noise XX Handshake protocol with forward secrecy
• Delivery ACKs and read receipts
• Chat header icons reactive
• Lots of code cleanup

This release has been thoroughly tested for compatibility with bitchat for iOS version 1.1.0 (permissionlesstech/bitchat@e57bfad)

What's Changed

• Implement Noise XX Handshake Protocol for Direct Messages by @callebtc in #180
• NoiseProtocol update: send nonce in packet by @callebtc in #181
• Periodidc broadcast announce by @callebtc in #183
• Centralized relay manager by @callebtc in #182
• Handle only packets addressed to me by @callebtc in #184
• Refactor fingerprint manager by @callebtc in #185
• Fix delivery acks and read receipts by @callebtc in #186
• Init handshake on dm by @callebtc in #187
• send read receipts on focus by @callebtc in #189
• Dm header icons reactive by @callebtc in #190
• UI improvements by @callebtc in #192
• bump to 0.8 by @callebtc in #188

Full Changelog: 0.7.2...0.8