ATHENS (Reuters) - Greece's anti-bailout party, Syriza, has widened its lead over the ruling conservatives, two surveys showed on Thursday, with just over a day of campaigning left before a national election. A poll by Metron Analysis to be published on Friday showed Syriza's lead over the New Democracy party of Prime Minister Antonis Samaras growing to 5.3 points from 4.6 points in a previous ...