Merge pull request 'Finaler Rettungsstuss (+10 ATK gegen untote Server)' (#210) from suicide into master

Reviewed-on: #210
Reviewed-by: YoyoNow <jwsteam@nidido.de>

SpigotCore_Main/src/de/steamwar/core/CrashDetector.java

@@ -54,8 +54,12 @@ public class CrashDetector {
                 if(mainThread.isAlive()) {
                     SWException.log("Server hung for " + (curTime - lastTick.get()) + "ms", Arrays.stream(mainThread.getStackTrace()).map(StackTraceElement::toString).collect(Collectors.joining("\n")));
                 } else {
-                    SWException.log("Server thread already dead, stopping server", "");
-                    System.exit(0);
+                    SWException.log("Server thread already dead, unclean server stop", "Core enabled: " + Core.getInstance().isEnabled());
+                    if(Core.getInstance().isEnabled()) {
+                        Core.getInstance().onDisable();
+                    }
+                    //System.exit(0); Does freeze, potential freezing issues: ConsoleRestoreHook, ApplicationShutdownHooks or DeleteOnExitHook
+                    Runtime.getRuntime().halt(0);
                 }
                 lastTick.set(curTime);
             }