relay.Connection.__init__ does not call super #131
Description
https://github.com/graphql-python/graphene/blob/master/graphene/relay/types.py#L58
Is there a reason why not?
It seems to be the cause of a __init__() got an unexpected keyword argument '_root'" error I am getting using a ConnectionField and a custom relay.Connection subclass. There are some other things going in my code so it's not easy to post an example, but essentially, ConnectionField inherits Field, and the wrapped resolver in Field.internal_type always wants to pass _root.