Fixing minor issues with MarginPerceptron
Fixing minor issues with MarginPerceptron

patverga/factorie,asubbaswamy/factorie,joprice/factorie,pogren-oracle/factorie,digitalreasoning/factorie-scala-210,melisabok/factorie,zxsted/factorie,Craigacp/factorie,strubell/factorie,factorie/factorie,hlin117/factorie,malcolmgreaves/factorie