- UID parsing in selfcert
- Old contacts format in certify

- Fixed issue #55
- Fixed display of units in transactions tab
- Fixed an error when an account was not a member of a community

self.close() replaced with super().accept()
QErrorMessage replaced with QMessageBox.critical()

Fixing caching bug with blocks being refreshed only every 5 minutes, even if the blocks changed.

New dialog created : PasswordDialogAsker
Needs to be passed throught the Widgets managing the current account