[#1408] update

The last editor problem is a breakage from the unicode changes. It has been fixed on zwiki.org and commited to unstable, though it raises a larger issue of whether to replace simple field names with the modern field accessors in our catalog metadata.

ZCTextIndex also breaks with unicode content::

  Traceback (most recent call last):
  File "/zope2/Products/ZWiki/Catalog.py", line 112, in index_object
    self.catalog().catalog_object(self,self.url(),idxs)
  File "/zope-2.10.5/lib/python/Products/ZCatalog/ZCatalog.py", line 535, in catalog_object
    update_metadata=update_metadata)
  File "/zope-2.10.5/lib/python/Products/ZCatalog/Catalog.py", line 360, in catalogObject
    blah = x.index_object(index, object, threshold)
  File "/zope-2.10.5/lib/python/Products/PluginIndexes/common/UnIndex.py", line 235, in index_object
    res += self._index_object(documentId, obj, threshold, attr)
  File "/zope-2.10.5/lib/python/Products/PluginIndexes/common/UnIndex.py", line 262, in _index_object
    self.insertForwardIndexEntry(datum, documentId)
  File "/zope-2.10.5/lib/python/Products/PluginIndexes/common/UnIndex.py", line 207, in insertForwardIndexEntry
    indexRow = self._index.get(entry, _marker)
  UnicodeDecodeError: 'ascii' codec can't decode byte 0xe6 in position 5: ordinal not in range(128)

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forwarded from http://zwiki.org/1408ZwikiOrgCatalogIsNotCompletelyWorking#[email protected]