New releases: R.E.M., Devo, The Mission, Paul Heaton, Neville Staple, The Cramps

This week’s releases include a pair of titles from R.E.M. (the band’s 1991 and 2001 “Unplugged” sessions, plus a digital rarities set), a collection of Devo demos, a new best-of from The MIssion, a new album from Paul Heaton and Jacqui Abbot of The Beautiful South, a Cramps vinyl reissue and more.