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New features:
- Pass through field attribute 'widget' for field Dict [ksuess] (1153)
Bug fixes:
- Use security decorators in PAS plugin. [jensens] (1155)
- Drop coding magic first line. Coding magic is no longer needed in Python 3, except if different from utf-8. [jensens] (1156)
- Fix PAS plugin ZMI markup for Zope4+. [jensens] (1157)
- Eliminate non-pythonic 'return None' usage. [jensens] (1158)
- Provide value_type of plone.schema / zope.schema Dict field [ksuess] (1159)