#164 can't build text catalog indices

traceback:

   Error Type: TypeError
   Error Value: Splitter() got an unexpected keyword argument 'encoding'
     File /usr/local/zope/2.5.0/lib/python/ZPublisher/Publish.py, line 150, in publish_module
     File /usr/local/zope/instance/Products/Localizer/__init__.py, line 68, in new_publish
     File /usr/local/zope/2.5.0/lib/python/ZPublisher/Publish.py, line 114, in publish
     File /usr/local/zope/2.5.0/lib/python/Zope/__init__.py, line 158, in zpublisher_exception_hook
       (Object: Catalog)
     File /usr/local/zope/2.5.0/lib/python/ZPublisher/Publish.py, line 98, in publish
     File /usr/local/zope/2.5.0/lib/python/ZPublisher/mapply.py, line 88, in mapply
       (Object: manage_catalogFoundItems)
     File /usr/local/zope/2.5.0/lib/python/ZPublisher/Publish.py, line 39, in call_object
       (Object: manage_catalogFoundItems)
     File /usr/local/zope/2.5.0/lib/python/Products/ZCatalog/ZCatalog.py, line 330, in manage_catalogFoundItems
       (Object: Catalog)
     File /usr/local/zope/2.5.0/lib/python/Products/ZCatalog/ZCatalog.py, line 697, in ZopeFindAndApply
       (Object: Catalog)
     File /usr/local/zope/2.5.0/lib/python/Products/ZCatalog/ZCatalog.py, line 480, in catalog_object
       (Object: Catalog)
     File /usr/local/zope/2.5.0/lib/python/Products/ZCatalog/Catalog.py, line 367, in catalogObject
     File /usr/local/zope/2.5.0/lib/python/Products/PluginIndexes/TextIndex/TextIndex.py, line 312, in index_object
       (Object: text)