Update for https and get more data
Switched to htttps, http was redirecting. That caused failures in curl. Primarily switched to getting 310 prefixes separately from all the others, as it's such a much bigger pool of data than the rest. So now it gets all of the US, then a fixed number from 310, then it figures out how many contacts are left from worldwide and gets those. I also added a variable called 'wwextra' which lets you download more data than the radio can hold but when de-deuplicated is smaller than the maximum. In other words, the radio with OpenGD77 can hold 13796 records but let's retrieve like 14500. When de-duplicated, it'll still be below 13796. But still do all the sanity checks so we don't go over.
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