Make change address for imported keys the same

Fixes #769
trezor plugin
proper i18n
remove redundant i18n
support for restore
enable trezor plugin if about to create/restore wallet
restore values to allow fee check
enable plugin for trezor wallet
Fixes dependency to pinmatrix
Fix get_master_public_key, Label plugin now works
don't use internal cmdtr module in trezor plugin
passing wallet instance not needed anymore
update imports
update imports for gui
update trezor plugin waiting dialog

update waiting dialog so that ok/cancel doesn't need to be used on the
GUI, only on the trezor device
Clean up dialog code

TODO: fix dialog for cancelled tx from Trezor
Fix dialog for cancelled TX on Trezor
Merge pull request #2 from wozz/trezor_plugin

Trezor plugin
Remove extra variable that isn't needed
Merge pull request #3 from wozz/trezor_plugin

Remove extra variable that isn't needed