hide inactive folders

- remove leftover debug message

grammar2uml/src/main/java/de/tudresden/inf/st/jastadd/grammar2uml/compiler/Grammar2UmlProcessor.java

@@ -128,8 +128,6 @@ public class Grammar2UmlProcessor {
       // generate aspect and write file
       grammar2uml.flushTreeCache();
 
-      System.out.println("--- " + folder.getName() + " ---");
-
       String generatedAspect = grammar2uml.generateAspect();
       writeFileContent(destinationDirectory.resolve(folder.getName() + "." + extension), generatedAspect);
 

grammar2uml/src/main/resources/Folder.mustache

+{{#Active}}
 package {{name}} <<Folder>> {
+{{/Active}}
 {{#InnerTypeDecls}}  {{> TypeDecl}}{{/InnerTypeDecls}}
+{{#Active}}
 }
+{{/Active}}