For autopause, added use of mc-monitor to detect players connected (#1059)

examples/docker-compose-autopause.yml

@@ -12,7 +12,10 @@ services:
       ENABLE_AUTOPAUSE: "TRUE"
       OVERRIDE_SERVER_PROPERTIES: "TRUE"
       MAX_TICK_TIME: "-1"
-    restart: always
+      # More aggressive settings for demo purposes
+      AUTOPAUSE_TIMEOUT_INIT: "30"
+      AUTOPAUSE_TIMEOUT_EST: "10"
+    restart: unless-stopped
 
 volumes:
   mc: {}