Bill Cosby’s attorney says a sexual assault charge is unjustified and that the comedian will be exonerated following a vigorous defense.  Monique Pressley says the charge by the Montgomery County district attorney’s office in Pennsylvania was no surprise.  Cosby was arraigned Wednesday afternoon in Elkins Park.  He is charged with drugging and sexually assaulting the woman in 2004 inside his home near Philadelphia.  It’s the first criminal case brought against the comedian out of the torrent of allegations that destroyed his good-guy image as America’s Dad.  The 78-year old comedian said under oath that he had consensual sexual contact with the woman.