Merge branch 'release/1.0.29'

src/siu/sq/lib/constantes.php

src/siu/sq/lib/daos/catalogo.php

src/siu/sq/lib/daos/dao_comprobantes.php

src/siu/sq/lib/daos/dao_notificaciones.php

src/siu/sq/lib/modelo/notificacion.php

src/siu/sq/lib/procesos/proceso_enviar_emails.php

src/siu/sq/lib/util/mailer.php