#4 — Adding/editing Success Story rotating portlet error when Success Story Folder title contains non-ascii (utf-8) characters

When adding or editing a Success Story rotating portlet, the following error may occur when a Success Story Folder title contains non-ascii (utf-8) characters:

   Traceback (innermost last):
     Module ZPublisher.Publish, line 127, in publish
     Module ZPublisher.mapply, line 77, in mapply
     Module ZPublisher.Publish, line 47, in call_object
     Module plone.app.portlets.browser.formhelper, line 123, in __call__
     Module zope.formlib.form, line 782, in __call__
     Module five.formlib.formbase, line 50, in update
     Module zope.formlib.form, line 745, in update
     Module zope.formlib.form, line 820, in setUpWidgets
     Module zope.formlib.form, line 384, in setUpEditWidgets
     Module zope.schema._field, line 293, in bind
     Module Products.Five.schema, line 36, in get
     Module Products.ATSuccessStory.vocabularies, line 25, in existingSSFolders
   UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 30: ordinal not in range(128)

This can be resolved by modifying vocabularies.py, by replacing:

    for value in results:
        path = value.getPath()
        terms.append(SimpleVocabulary.createTerm(path, path, u'%s - %s'%(value.Title, value.getPath())))

with:

    for value in results:
        path = value.getPath()
        title = value.Title
        title = title.decode('utf-8')
        terms.append(SimpleVocabulary.createTerm(path, path, u'%s - %s'%(title, path)))