ALLISON MOORER Crows [Rykodisc] For an artist whose career has been built on darkly gorgeous  hymns to melancholy, suddenly finding yourself happily married is an occupational hazard. Allison Moorer’s 2006 album Getting Somewhere found her working with new husband Steve Earle, and some measure of inspiration was lost between the earnest sunniness of the songs and Earle’s overbearing production stamp. Last year’s covers album Mockingbird was...