Merge branch 'tx-list'

* tx-list:
  Admin Command Menu + Admin Financial View
  Transactions List
  Customer Financials
  Telephone Link

Customer Financials

I've pulled out information about payment methods and bitcoin into its
own thing. It's kind of a repository, except that it only exposes
fetchers and doesn't load anything generally.

There's also a few new methods here that aren't used yet, but will be
shortly.

LowBalance returns amount added, if any

Merge branch 'rubocop'

* rubocop:
  Additional fixes for rubocop 1.10.1
  Switch to rubocop 0.89.1

Switch to rubocop 0.89.1

This is the rubocop in new Debian stable

Remove BigDecimal.new

It turns out in newer versions of Ruby this isn't cool anymore.
The new way is BigDecimal(value), which is dumb, but whatever...

It's never been called customer.id

Tell user about bonus amount when doing credit card top up

Merge branch 'credit-card-bonus'

* credit-card-bonus:
  Insert bonus when paying by credit card

Insert bonus when paying by credit card

Refactor BuyAccountCreditForm

add_to_form no longer needs a promise or a network call, instead we use
a factory to get that data up front and inject the dependency.

New BuyAccountCreditForm#parse to get the relevant data back out of an
XMPP form.

Some changes to Transaction and sgx_jmp.rb to use the new method
semantics.

Merge branch 'new-signup-credit-card-decline'

* new-signup-credit-card-decline:
  Block repeated declines for 24 hours
  Handle credit card decline

Block repeated declines for 24 hours

Split logic out into testable objects

Rubocop clean. Good test coverage of helper objects.