add missing introspection

Signed-off-by: Marc-Antoine Perennou <Marc-Antoine@Perennou.com>
history: add method to rename a password

Signed-off-by: Marc-Antoine Perennou <Marc-Antoine@Perennou.com>
daemon: implement RenamePassword

Signed-off-by: Marc-Antoine Perennou <Marc-Antoine@Perennou.com>
history: emit changed on rename

Signed-off-by: Marc-Antoine Perennou <Marc-Antoine@Perennou.com>