bugfix: create empty parameters list for new algorithm instead of null reference

src/main/java/eu/hbp/mip/model/Algorithm.java

 package eu.hbp.mip.model;
 
+import java.util.LinkedList;
+
 /**
  * Created by mirco on 09.11.16.
  */
@@ -8,13 +10,11 @@ public class Algorithm extends ExperimentValidator {
 
     private boolean validation;
 
-    public Algorithm() {
-    }
-
     public Algorithm(String code, String name, boolean validation) {
         this.validation = validation;
         setCode(code);
         setName(name);
+        setParameters(new LinkedList<>());
     }
 
     public boolean isValidation() {