The cert package was created as a convenience for customers to check the cert and it was made by eedk. You should be able to check it in normally via console. I don't know of a way to disable signature verification via api.
Hopefully within the next week or 2 there will be a new rebranded eedk version released. It will still only be supported on the community forum, but when it is available, I will post it and update the links.
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