In-a-Dyn v2.5

Changes

• macOS changes by Jo Rhett:
  • Add linking with -lresolv
  • Use Homebrew's CA trust store
  • Update REDAME with install help
• Add support for selfhost.de DDNS

Fixes

• Fix #211: Only show DDNS server response on successful transaction
• Fix #211: Improved error handling in OpenSSL back-end
• Fix #214: Add nochg to list of good responses for custom providers
• Fixes by Eric Sauvageau:
  • Fix #216: Add DNS lookup exception for all.dnsomatic.com
  • Fix #219: Add DNS lookup exception for [email protected]