Hotfix package name

src/de/steamwar/linkage/LinkageProcessor.java

@@ -65,13 +65,10 @@ public class LinkageProcessor extends AbstractProcessor {
     public synchronized void init(ProcessingEnvironment processingEnv) {
         super.init(processingEnv);
 
-        String name = new File(System.getProperty("user.dir")).getName();
-        if (name.contains(".")) name = name.substring(0, name.indexOf('.'));
-        name = name.toLowerCase();
+        name = new File(System.getProperty("user.dir")).getName().replaceAll("[^a-zA-Z]", "").toLowerCase();
 
         messager = processingEnv.getMessager();
 
-        this.name = name;
         packageName = "de.steamwar." + name + ".linkage";
         className = "LinkageUtils";
         mainClass();