OperationAll to OperatorAll

Replaced the `OperationAll` to an `OperatorAll`.

Caveat: I am a newbie here, hoping to learn, so please do not spare me.
I saw a remark on performancetests, but noticed they were not applied everywhere, so I left them out.
I saw no issue yet asking for this work, this is on invitation from Erik Meijer at QCON yesterday.
If you want me to I can tackle some other operations as well.