Overview of changes in 3.56.3

• Bugs fixed:
  
  • Add DAV detection and configuration for SOGo (Gerald Zehetner)
    
  • #448 DAV discovery fails when certain SRV lookups fail
    
• Translation updates:
  
  • German (Jürgen Benvenuti)
    

Git-EVTag-v0-SHA512: c55defd90d3cad560427cd24532e79675b6a25b08c0a23cfde911ef25b9e8a42531986689912018721cc5fb66e3918b344962ee5a9fc2a10c93b5870473d6d0e