cleanup: use for-each loop where applicable

src/main/java/net/server/services/ServicesManager.java

@@ -41,8 +41,8 @@ public class ServicesManager {
     }
     
     public void shutdown() {
-        for (int i = 0; i < services.length; i++) {
-            services[i].dispose();
+        for (Service service : services) {
+            service.dispose();
         }
         services = null;
     }