fix DoubleSeq infinityNorm (was max element, should be max abs(element))
fix DoubleSeq infinityNorm (was max element, should be max abs(element))

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