Fix continue and exit on blank input
Fix continue and exit on blank input

Additionally:

* Unset account password after login to stop it sitting around in
  memory unecessarily. The actual effect of doing this is probably
  negligible.
* Increase the sleep time when waiting for `less` to close. This
  should really block, but I needed a quick solution to get it running.

stecman/passnote,stecman/passnote,stecman/passnote