* BUG: Retrieving a password now returns NULL if no password is stored in
the keyring, instead of raising an error.
* NEW: Storing a NULL password now removes the password from the keyring
instead of storing a void password.
git-svn-id: svn://localhost/gambas/trunk@6873 867c0c6c-44f3-4631-809d-bfa615b0a4ec
75490d66d2