reprocess on curved schedule, restart, or connection change
invalid messages are nacked using IllegalArgumentException
disputes are considered open by ack on chat message
don't show trade completion screen until payout published
cannot confirm payment sent/received while disconnected from monerod
add operation manual w/ instructions to manually open dispute
close account before deletion
fix popup with error "still unconfirmed after X hours" for arbitrator
misc refactoring and cleanup
