first version with working archive

src/main/java/de/srsoftware/widerhall/Util.java

@@ -158,4 +158,8 @@ public class Util {
 
         return null;
     }
+
+    public static String dropEmail(String tx) {
+        return tx.replaceAll( "[.\\-\\w]+@[.\\-\\w]+", "[email_removed]");
+    }
 }