By Denny Dyroff, Entertainment Editor, The Times This is the weekend that America pays tribute to Civil Rights pioneer Martin Luther King, Jr. Martin Luther King Weekend will be celebrated from January 18-20 at the Eastern State Penitentiary (2027 Fairmount Avenue, Philadelphia, 215-236-3300, www.easternstate.org) from 11 a.m.-4:45 p.m. Visitors will be able to commemorate Dr. Martin Luther King...