helpfulness (8.x-1.0-alpha4) - en to mg translation catalogue (8 entries)

en: Delete
mg: Fafaina

en: Submit
mg: Manaiky

en: Subject
mg: Lohahevitra

en: Cancel
mg: Aoka ihany

en: Yes
mg: Eny

en: No
mg: Tsia

en: Update
mg: Ovana

en: User
mg: Mpampiasa
