hotfix credit card activation
Script to create Redis key of BTC addresses available to the app
Add one-off script to convert long activation ranges to balance

Fix-up for the web register previously doing 5 month activations with 0 balance
instead of adding balance + 1 month activation.
Copy in account activation logic from sgx-jmp

This is largely duplicated code, but the whole web-activation path should go
away soon.  This fixes web activation to produce the data we actually expect
instead of the hack previously produced.  Instead of an account activation for 5
months, we insert 5 months of balance and then bill for only one month as is reasonable.
Do not hang forever if shutdown fails
Do not warn about BTC tx <= 0

This is a valid case for when we have sent BTC received at this address out.

Since these files didn't have shebangs, rubocop didn't look at them.
Once it started looking it found a bunch of stuff it didn't like, but
the original commit where they were written is already merged, so I'm
fixing those issues here.
Fix Executables

I've added shebangs to the starts and chmod'd the scripts to match the

Locally I just ran `bundle exec rescue` and so didn't notice until it went
into prod that they didn't match.
Various Electrum Checks and Fixes

There were some issues with Electrum, and we lost a bit of confidence,
so I built these to help with that.

- This one is meant to be run in cron. It checks for addresses we've
  given a user that Electrum doesn't know we have. It just prints out,
  so we get an email and can go look.
  The purpose of this is to know before our users that we're missing

- This one is meant to be run in cron. It looks through the addresses
  that users has have been given to make sure the same address hasn't
  been given out to more than one person.
  It just prints out the issues, so we'll be notified and can take a

- This is one potential solution that can be run in response to
  duplicate addresses.
  Since I'm expecting an email from bin/detect_duplicate_addrs, this
  takes as input the text that was sent to us.
  It goes through each address and re-assigns it away from all users,
  parking the addresses on the support account so we still get notified
  when people send money, etc
  Because it takes output as input, they could be piped together in
  theory, but I never tested that because I assume some investigation
  would be warranted

- This script goes through every bitcoin address that's been given to a
  customer and makes sure that electrum knows to tell us about changes
  to that address
small on next line
Merge branch 'auto-top-up'

* auto-top-up:
  Default auto-top-up to $15 and allow changing from credit card management screen
Default auto-top-up to $15 and allow changing from credit card management screen
Wait until fully disconnected before EM.stop
Transaction id must be unique
Include BTC addresses in notification, if there are any
If a user has no balance, then their balance is 0
Only notify expired users once a week