Removing extra logging cruft.
Added invoice-payment test with mock Bitpay service.
Added tournament-status-change validation and tests.
Prize tournaments can now be funded upon creation! Test added for this case. Updated invoices endpoint to received passed parameter whether it's receiving notification of payment for a registration (buy-in tourney) or tournament prize (from the creator).
Updated README.md
Updated status-change button visibility
UI formatting of prizes and buyins on various screens and modals