Fix utf-8 error (when special chars used in AS titles)
Fix utf-8 error (when special chars used in AS titles)

Traceback (innermost last):
  Module ZPublisher.Publish, line 138, in publish
  Module ZPublisher.mapply, line 77, in mapply
  Module ZPublisher.Publish, line 48, in call_object
  Module bika.lims.exportimport.dataimport, line 76, in __call__
  Module bika.lims.exportimport.load_setup_data, line 99, in __call__
  Module bika.lims.exportimport.setupdata, line 83, in __call__
  Module bika.lims.exportimport.setupdata, line 1555, in Import
  Module bika.lims.exportimport.setupdata, line 1531, in resolve_service
  Module Products.CMFPlone.CatalogTool, line 393, in searchResults
  Module Products.ZCatalog.ZCatalog, line 604, in searchResults
  Module Products.ZCatalog.Catalog, line 925, in searchResults
  Module Products.ZCatalog.Catalog, line 545, in search
  Module Products.PluginIndexes.common.UnIndex, line 403, in _apply_index
UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 26: ordinal not in range(128)

labsanmartin/Bika-LIMS,labsanmartin/Bika-LIMS,labsanmartin/Bika-LIMS,veroc/Bika-LIMS,veroc/Bika-LIMS,rockfruit/bika.lims,veroc/Bika-LIMS,rockfruit/bika.lims