Made setupInjection optional

Author: JanHolger

src/main/java/org/javawebstack/framework/WebApplication.java

@@ -141,7 +141,7 @@ public Crypt getCrypt(){
 
     protected void setupModules(){}
     protected abstract void setupConfig(Config config);
-    protected abstract void setupInjection(SimpleInjector injector);
+    protected void setupInjection(SimpleInjector injector){}
     protected abstract void setupModels(SQL sql) throws ORMConfigurationException;
     protected abstract void setupServer(HTTPServer server);
     protected abstract void setupCommands(CommandSystem system);