update zodb wiki files to synch with its cookiecutter

Steve Piercy

2017-07-27 1ed4cc20651537b903609b42f5b35e1a98441a16

 docs/tutorials/wiki/src/models/tutorial/models.py

@@ -17,6 +17,4 @@
        frontpage.__name__ = 'FrontPage'
        frontpage.__parent__ = app_root
        zodb_root['app_root'] = app_root
        import transaction
        transaction.commit()
    return zodb_root['app_root']