pep8
- Remove the behaviors plone.app.relationfield.behavior.IRelatedItems adn
  plone.app.versioningbehavior.behaviors.IVersionable from the Dexterity
  example type. We don't depend on these packages and won't introduce an
  explicit dependency on it.
- Remove the behaviors plone.app.relationfield.behavior.IRelatedItems adn
  plone.app.versioningbehavior.behaviors.IVersionable from the Dexterity
  example type. We don't depend on these packages and won't introduce an
  explicit dependency on it.
not 4.4 but 5.0
not 4.4 but 5.0
- Restore Javascript based edit-form functionality to set end dates depending
  on start dates with the same delta of days as initialized, as developed by
  vincentfretin back at plone.app.event's birth.