In This Light and On This Evening After Editors’ stellar U.S. debut in 2006 got overlooked and a self-conscious 2007 follow-up came and went here without much fanfare, the British post-punk band seems to have struck a comfortable balance on its third release. Editors will probably never shake the scorn of those who think the band is merely rehashing influences such as Joy Division and Echo & the Bunnymen, but this time it doesn’t seem to care....