Add renameUser in AuthService

Signed-off-by: Etienne CHAMPETIER <etienne.champetier@fiducial.net>
auth.fiducial & notify.fiducial

Signed-off-by: Etienne CHAMPETIER <etienne.champetier@fiducial.net>
Logo & customisation (Pydio -> FiduShare)

Signed-off-by: Etienne CHAMPETIER <etienne.champetier@fiducial.net>
Confs

Signed-off-by: Etienne CHAMPETIER <etienne.champetier@fiducial.net>