Implement schemaeditor support
Add dependency on plone.app.vocabularies
Merge and adapt tests from https://github.com/plone/plone.app.relationfield/pull/7
Drop old invalid supermodel handlers
Add plone.app.dexterity as test dependency
Fix contenttree-dependent test to run only when contenttree is present
Add BBB for version with 'portal_types' as supermodel attribute
Try separate Travis-build with contenttree
Update test dependencies
Add Pillow into test eggs for Travis
Merge custom RelationFieldFactory from pull/7
Update tests
Update Travis configuration
Update Travis configuration
Update Travis configuration
Update Travis configuration
Implement plone.app.widgets support
Update Travis configuration
Update Travis configuration
Update Travis configuration