Merge branch 'makeSensitiveDefault' into 'master'

make "identifier" attribute true by default in versioned file

See merge request !155

GeoModelTools/GeoModelXML/GeoModelXml/data/geomodel_v0.dtd

@@ -248,7 +248,7 @@
                      sensitive  IDREF #IMPLIED 
                      alignable  (true|false) "false"
                      named      (true|false) "true"
-                     identifier (true|false) "false"
+                     identifier (true|false) "true"
                      envelope   (true|false) "false"
                      splitLevel CDATA #IMPLIED>