Connected server timeout

How long (in seconds) a server connection can stay idle before being disconnected.

Original eDonkey server sends a \"ping\" packet to its clients every 70s, Lugdunum servers send a ping packet to 1/10 of their clients every 10s (so each client must be pinged every 100s).

So the default timeout value (1800s, or half an hour) is too conservative. Lowering it to around 300s should help detecting dead server connections faster.