Thursday & Friday, January 28 & 29:  UB40: Reunited Tour (Friday’s concert is sold out).  The original members of UB40 enjoyed huge success from 1979 until 2008, helping define reggae music for a generation. The multiracial band pooled a diverse set of influences to put a fresh, indigenous slant on Jamaican reggae. After 2008, the band that carried on using the name UB40 was made up of other founding members and new members, but in 2013, when Ali Campbell reunited…