Update Custom Settings (7.x-1.2) - en to af translation catalogue (4 entries)

en: Monthly
af: Maandeliks

en: From
af: Van

en: %email is not a valid e-mail address.
af: %email is nie 'n geldige e-posadres nie.

en: New release(s) available for !site_name
af: Nuwe weergawe(s) beskibaar vir !site_name
