class MyVerifyingKey, with constructor to submit to python-ecdsa
update imported keys
fix: wizard 2of2
fix: wizard 2of2 (cosigning key)
move tests to unittest format
check message length in mnemonic encode
unit test for aes
fix get_pubkey for imported keys
do not raise an error if user config file is corrupted
simplify send tab layout (unneeded vbox)
Merge remote-tracking branch 'upstream/master'

Conflicts:
	gui/qt/main_window.py