By Anna Koper and Pawel Florkiewicz WARSAW (Reuters) – Poland’s parliament voted in favour of Donald Tusk becoming prime minister on Monday, putting an end to eight years of nationalist rule and setting the stage for a thawing of relations with the European Union. Poland has seen tens of billions of euros of European Union funds frozen due to a dispute with Brussels over democratic standards, but Tusk, a former European Council president, has vowed to mend relations and unblock the cash. 248 were in favour of Tusk becoming prime minister and 201 were against. “He gave up the comfortable life h…