delete the revision number for all headers regarding metadataPrefix oai_idiom_mets

oaipmh-core/src/main/java/info/textgrid/middleware/OAIPMHUtilities.java

@@ -605,8 +605,13 @@ public class OAIPMHUtilities {
       final String identifier, final String setSpec) {
 
     HeaderType result = new HeaderType();
-
-    result.setIdentifier(identifier);
+        //identifier.substring(0, identifier.indexOf("."));
+    if(identifier.contains(".")){
+      result.setIdentifier(identifier.substring(0, identifier.indexOf(".")));
+    }else{
+      result.setIdentifier(identifier);
+    }
+    
     result.setDatestamp(dateOfCreation);
 
     log.debug(