Filtered exports

You can now export filtered lists of stuff. The exporting functionality has historically been all-or-nothing: we give you a big bundle of every single subscriber (or email, or API request, or whatever) for your newsletter and then leave it up to you to filter out the stuff you don't want.

Now, if you filter your list (say, to only include subscribers tagged "high-value"), you can export just those items. Exact same UI, just a slightly more pleasant experience (and with a new confirmation dialog to boot.)