Changes in version 3.5.4 are: * Support the xdg:schema attribute on secret items * Update to newer glib dependency and remove redundant code * Encode passwords correctly for gpg2 in the gpg-agent * Fix types of the DBus Created and Modified properties * Expose the 'session' and 'login' keyrings as aliases * Emit Secret Service signals when collections/items change * Fix some spurious warnings * Testing fixes