CryptedFileKeyring, one must first upgrade to 0.9.2 or later and access the
keyring before upgrading to 1.0 to retain the existing keyring.
+* Merged 0.9.3 to include fix for #75.
+* Ensure migration is run when get_password is called. Fixes #75. Thanks to
+ Marc Deslauriers for reporting the bug and supplying the patch.