fix: payment_request
new widget: QRTextEdit
fix: expiration in invoices
fix: qrtextedit constructor
use QRTextEdit for public and private keys
receive tab, separate from addresses tab
show list of requests in receive tab
parse_URI: amount is in satoshis
fix #727
adjust receive_list column width
connect receive_list, to display saved items
fix: clear receive tab if an item is deleted
disable save_request_button if fields are empty
do not show send from menu for addresses that have no coins
waiting dialog: handle exceptions
catch invalid password exceptions in sign_raw_transaction too
fix decimal point in AmountEdit
tweak receive layout
bundle dependencies in 'packages' dir. use qrcode instead of pyqrnative
access to global configuration using set_config and get_config