enhanceSelectElement does not unset name as claimed in README

[lennym]

The README section for enhanceSelectElement states the following:

Default the autocomplete name attribute to '' to prevent it being included in form submissions

However the code at https://github.com/alphagov/accessible-autocomplete/blob/master/src/wrapper.js#L36 sets it to the same name as the select element unless explicitly overwritten - and it cannot be explicitly set to '' since that is a falsy value (as per #128)

I'm not sure whether the docs or the code are correct in this instance (though my instinct is the code) so haven't PR'ed a fix.

[tvararu]

Actually, the name should stay blank (for the reason stated). That's a bug with the code, introduced here (we didn't notice), the docs are correct.

Feel free to fix! (updating tests to reflect behaviour)

🤔 This is technically a breaking change?

[lennym]

It won't be today (I was meant to be heading home an hour ago!) but I'll see if I can find time next week.