Update Compose

[stuartpb]

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[stuartpb]

Moves to compose.com via legacies, per ruminations from #43.

Tried to register with https://mailsac.com/inbox/compose-2017-02-21@tmail.opws.org but it requires a credit card and I CBA to fake payment credentials so I skipped out on that. Rest of these notes / profile changes are based on experiments via my own account

Made me update my payment info because my old info was expired

Stripe sent me a verification SMS, then couldn't use my stored CC so I still had to re-up manually

destination is dashboard if resetting password while logged in, login if not (#68) - the flash says "please log in" either way

requesting a second password reset token after the first doesn't send it, maybe because the old one still works, even after you use it

Wait, no, it was sent, it just didn't arrive until it was eleven damn minutes late, at which point it had already expired (I think these have a fifteen-minute lifetime? that's an estimate based on the timestamp and this email being broken now) and I'd already determined that these have an expiration problem

Passwords above 999 don't reject so I've removed the max: it does appear that they're being truncated, though (#233), so maybe that can be tested and profiled in the future.