UserInterfaceTodo

• Pressing Escape in dialogs should close them.
• When a new account is created:
  • If an other user is still logged in, ask him what to do
  • Otherwise, automatically log in.
• When a user is not logged in, don't show any of the tabs.
• When I press Enter in the Login-dialog, perform the Login-action.
  • Currently the keyListener doesn't listen to keyEvents in the e-mail or password input-field.