The fourth edition of the recurrent Ska is Dead tour lands at Culture Room on Thursday with a bill straight out of 1997. Ska has been reviled and declared dead for about the last 30 years, but it seems its horn-heavy effervescence just can't be dampened. The genre itself pre-dates reggae, coming out of Jamaica in the early '60s and incubating the careers of later stars. Outside of the island, though, its flickers in the mainstream have, to be honest, come through white punk kids' appropriat