all in lib/biocase/pywrapper!

- errorclasses.py, Zeile 82: 
  self.args = None ersetzt durch seld. args = []   (bugfix)

- structure/structure_handler.py, in integrateSimpleType:
  copying vocabularies for explicitly defined types added (bugfix)

- structure/structure_handler.py. in startSimpleElement:
  commented the line twice
  parser.setFeature(xml.sax.handler.feature_namespace_prefixes, 1)

- model.py, in __init__:
  commented the line 
  self.parser.setFeature(xml.sax.handler.feature_namespace_prefixes, 1)

- protocols/TAPIR/schemaparsing.py, in printContent:
  commented the line 
  parser.setFeature(xml.sax.handler.feature_namespace_prefixes, 1)


Changes just for LIDO

- structure/structure_handler.py:
  * added class singletonDict (line 48)
  * ~line 95 changed into self._includeDict = singletonDict()
  This bugfix prevents from going in circles when circular references occur in xsd includes (as is the case in gml, which is used for LIDO)

- Structure/structure_handler.py, in resolveRefsAndTypes, in the block that resolves node references:
  * added the line
       qualRefName = qualRefName.replace('/@', '')
  * uncommented one line (after "first verify...")
    That was necessary for LIDO for correctly processing refs, otherwise it would fail.
    If a reference will be solved, there should be no need to process any children (unless it references a type with children).
    In this case, the workaround needs to be done a little different 

 - Structure/structure_handler.py, in resolveRefsAndTypes, in the block that resolves type definitions:
    Added the catching of an unknown type:
                        if not self._globalTypes.has_key(n.origTypeName):
                        ## This is a workaround for the problems with gml data types in LIDO
                        if n.origTypeName in ('{http://www.opengis.net/gml}string', '{http://www.opengis.net/gml}decimal'):
                            n.origTypeName = '{http://www.opengis.net/gml}stringOrNull'
                        else:
                            # global type not defined. raise error
                            log.debug("self._globalTypes=%s" % str(self._globalTypes.keys()))
                            raise ModelStructureError(log, loc=str(self.docURI), reason="Global type definition '%s' missing" % n.origTypeName)