Fiddler on the Roof **** - Once Upon a Mattress ** -These Paper Bullets! ***
By: David Sheward Two heretofore supporting players take the center spotlight in musical revivals with varying results. Danny Burstein, a five-time Tony nominee in featured or costarring roles, finally gets to carry a show in Bartlett Sher's intensely moving reinvention of Fiddler on the Roof, and Jackie Hoffman, a wildly funny second banana in such productions as Hairspray, The Addams Family, and…