Show IP address that caused auto-pause to resume (#1709)

Also
* Refactored auto files, server.properties, and rcon-cmds

files/auto/stop.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+
+. /start-utils
+if isTrue "${DEBUG_AUTOSTOP}"; then
+  set -x
+fi
+
+logAutostopAction "Stopping Java process"
+if isTrue "${AUTOSTOP_PKILL_USE_SUDO:-false}"; then
+  sudo pkill -f --signal SIGTERM mc-server-runner
+else
+  pkill -f --signal SIGTERM mc-server-runner
+fi