BY HOWARD CAMPBELL Observer senior writer Reprinted from the Jamaica Observer Monday, February 17, 2020 For nearly 40 years, Jahmark Tafari has carried the banner of Rasta and roots-reggae, an unapologetic disciple of the sound that made Marley, Tosh and Burning Spear legends. Recently, he has been embraced by an unlikely demographic. A remix of Happiness, a song he recorded …