fixed lifecycle of WalletBalanceFragment
'send coins' dialog reflects failed transaction
updated market description
highlight default currency in exchange rate list
fetch transaction from wallet by hash when viewing details
up affordance in transaction details
fetch exchange rates from blockchain.info if bitcoincharts.com is not available
show source of exchange rate
don't show qr code in details of oversize transaction
remove transaction confidence depth migration
update to bitcoinj 0.7-SNAPSHOT
listen on WalletEventListener.onWalletChanged() and throttle events
show ping time and protocol version in peer monitor
WIP also show inactive transactions in lists
maybe drop for now, inactive tx are shown anyway