Repairs and tweaks

Minimal restart delay is now 5 min not 10 and message is now printed only if --background is specified.
Added message to game about restart cancel.
Fixes bug, when all players was wiped from players status file.
Added control for online players to auto_stop (also fixes bug).
Restart from webside implemented.
Fixes online players list on webside.
Server status pooling increased to 1 sec from 0.8 sec.