* src/WriteXML.py: Switch from preferred to alt name attribute.

* doc/grampsxml.dtd: Update.
* src/ReadXML.py: Bring in sync with format changes.


svn: r5287

gramps2/doc/grampsxml.dtd

@@ -109,7 +109,7 @@ GENDER has values of M, F, or U.
 <!ELEMENT name    (first?,last?,suffix?,patronymic?,title?,
                   (daterange|dateval|datestr)?,note?,sourceref?)>
 <!ATTLIST name    
-        preferred (0|1) #IMPLIED
+        alt       (0|1) #IMPLIED
         type      CDATA #IMPLIED
         priv      (0|1) #IMPLIED
         sort      CDATA #IMPLIED