Variable Quit.reason

Mostly one out of: - "ping timeout 80s" - "quit" - "replaced (None 0ea7ac91-60bf-448b-adda-bc6b8d096dc7)" - "replaced (Supporter c83820bb-a602-43f0-8f17-04718e34b72d)"

struct Quit
{
  // ...
  string reason ;
  // ...
}