Declines should be an Int

Previously this retured a string and everywhere that used it had to
convert it into an it, or handle it if it's nil.

That's dumb.
Now it's always an int, and `nil.to_i` is 0 anyway so I don't have to
check that either.

Merge branch 'tx-list'

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

Admin Command Menu + Admin Financial View

I've added a new command to show financial information about the user.
But more importantly I've added an infinite admin subsystem which allows
me to go into a user and then run multiple commands on them.

For now it's just these two info commands, but in the future I'd like to
add mutative commands here.

Finally, since I sometimes look up multiple users in a pretty short
timeframe I made the menu open and if I put something into the list that
doesn't parse as one of the actions it instead switches the current user
so I don't have to do "cancel", "customer", and then put the next one
in.

I can just have the session open and put stuff in as needed.