changes for merge

domain/Robot.java

@@ -12,7 +12,7 @@ import java.util.stream.Collectors;
 public abstract class Robot implements utility.interfaces.Robot, Serializable {
    protected ExceptionStorage exceptions;
    private int id;
-   private String name;
+   private final String name;
    private boolean power;
 
    private String type;

facade/FactorySystem.java

@@ -1,8 +1,6 @@
 package facade;
 
-import java.io.FileNotFoundException;
 import java.util.Collection;
-import java.util.HashMap;
 import domain.*;
 import infrastructure.Persistenz;
 

ui/UI.java

@@ -1,6 +1,7 @@
 package ui;
 
 import domain.C3PO;
+import domain.Nexus6;
 import domain.R2D2;
 import domain.Robot;
 import facade.FactorySystem;