[fix] Wrong object name
[frontend] Add hooks for ledger updates and blocked transactions
[tests] Added ledger test suite
[refactor] Prices are now updated via a cron job. Added prices.latest method.
[tests] Added test suite for prices resource
[frontend] Sort ledger by ctime descending. Only show withdrawals on admin.
[frontend] Added "log in as another user" feature to admin
[tests] Added email mock to test suite. email provider is no longer needed to run tests.
[frontend] Use mock email provider when app is running in development
[frontend] [major] Add price calculation for deposits and withdrawals. Added price field to ledger. Added price field to all email notifications.