Add ability to archive users

Lets us clean out users who haven't used Betty in a long while.

Backend fixes and fundraising

• fix sort order
• filter deleted transactions from graphs
• update FAQ
• add fundraising banner

Update shame and fix float error

• 1 lingering float issue
• updated shame splash page, but did not activate it
• improved inventory page

UI Improvements & Floating point fix

• Make wall of shame on terminal more visible
• Add "+" button for incrementing item in cart
• Speed up admin index
• Sticky table headers
• Display fees and discounts totals
• Be more rigorous about using Decimal() and not float()

New Terminal UI

1. Changed to a two page terminal: login and purchase/deposit. Everything that you can do elsewhere you now have to.
2. Added "Wall of Shame" fee.

Backend page speedup, and improved deadbeet handling

• Remove the on/off sliders from most backend pages that take forever to load
• Add "pay to $25" button
• Other fixes for making it easier/better for people to pay betty back

Fix display of near-zero user balances

We store balance as a float (mistake), so we need to handle the -$0.00 rounding error case.

Direct payment links; UI improvements

• Add a direct payment link that allows users to pay with CC without logging in
  • Change e-mail reminders to use this link by default
• Add backspace and clear buttons to UMID login

Add user report generation

• Pool owners can now generate reports on pool activity.
• Fix for the new coinbase API

Notification for pool credit limit

• Sends an e-mail notification to the owner when a pool's credit limit is reached
• Raises the threshold for sending cashbox emails to $1000 min + every $100 after. That configuration should probably be reworked someday to not use static numbers.