Packaging for release 7.1.0

[DrewMartin]

To include #611

[jtgrenz]

theres a few other PRs that were pending final review, so might be better to wait for those. I had #600 and #605 that just got a final look and need to be rebased. I'll merge those now this morning if you wanna roll them all up together.

Edit: Scratch that. #600 will probably need a bump to 8.0. #605 could go in either one though.

[DrewMartin]

Sure thing. Should they be included in the release notes as well?

[jtgrenz]

for 605, maybe just add

ShopifyAPI::Base.api_version now defaults to ShopifyAPI::ApiVersion::NullVersion instead of nil. Making requests without first setting an ApiVersion raises ApiVersionNotSetError instead of NoMethodError: undefined method 'construct_api_path' for nil:NilClass'

or something. Just waiting on CI for that one

[DrewMartin]

Updated to include note for #605. Talked to @jtgrenz and #600 will go out separately, probably with a major version bump