Take into account Sonar comments

Author: thboileau

org.restlet.ext.freemarker/src/main/java/org/restlet/ext/freemarker/TemplateRepresentation.java

@@ -8,6 +8,8 @@
  */
 package org.restlet.ext.freemarker;
 
+import static freemarker.template.Configuration.DEFAULT_INCOMPATIBLE_IMPROVEMENTS;
+
 import freemarker.template.Configuration;
 import freemarker.template.Template;
 import freemarker.template.TemplateException;
@@ -129,7 +131,10 @@ public TemplateRepresentation(
      * @param mediaType The representation's media-type.
      */
     public TemplateRepresentation(Representation templateRepresentation, MediaType mediaType) {
-        this(templateRepresentation, new Configuration(), mediaType);
+        this(
+                templateRepresentation,
+                new Configuration(DEFAULT_INCOMPATIBLE_IMPROVEMENTS),
+                mediaType);
     }
 
     /**
@@ -141,7 +146,11 @@ public TemplateRepresentation(Representation templateRepresentation, MediaType m
      */
     public TemplateRepresentation(
             Representation templateRepresentation, Object dataModel, MediaType mediaType) {
-        this(templateRepresentation, new Configuration(), dataModel, mediaType);
+        this(
+                templateRepresentation,
+                new Configuration(DEFAULT_INCOMPATIBLE_IMPROVEMENTS),
+                dataModel,
+                mediaType);
     }
 
     /**
@@ -194,6 +203,11 @@ public TemplateRepresentation(Template template, Object dataModel, MediaType med
         this.dataModel = dataModel;
     }
 
+    @Override
+    public boolean equals(final Object obj) {
+        return super.equals(obj);
+    }
+
     /**
      * Returns the template's data model.
      *
@@ -212,6 +226,11 @@ public Template getTemplate() {
         return template;
     }
 
+    @Override
+    public int hashCode() {
+        return super.hashCode();
+    }
+
     /**
      * Sets the template's data model.
      *