Envoys left information.

When an envoys event is running, let people know for how much time it has been running in /envoysinfo and how many envoys left. If someone joins 3 hours after an envoy event and there is 1 envoy left for example, /envoysinfo will still say that it is running. The only way to know how many envoys are left in this case, is to have been online when the last envoy, before the x amount remaining was claimed (because a message shows up in chat, each time someone claims another envoy).