By Catarina Demony and Antonio Bronic LEIRIA, Portugal/RASLINA, Croatia (Reuters) -Wildfires raged across tinder-dry country in Portugal, Spain, France and Croatia on Thursday, burning homes and threatening livelihoods, as much of Europe baked in a heatwave that has pushed temperatures into the mid-40Cs in some parts. Nations across southern Europe – experiencing the second heatwave in as many months – have been hit by a series of wildfires over the last few weeks. In Portugal’s central Leiria district, tired firefighters battled to control blazes that have been fanned by strong winds. Footage…