Consitient parameter naming

[marcinczapla]

I've made the naming of the Credentials parameter consitient between open and clone methods.

[ajoberstar]

Thanks @marcinczapla. The consistency is a good improvement, however, since the old name wasn't deprecated, I don't want to remove it just yet.

You'll want to put a deprecated getter/setter in place (but still only have your new consistently named field).

Let me know if you have further questions/thoughts.

[ajoberstar]

Sorry for the delay, and thanks for the update! This will be in 3.0.