By Catarina Demony and Kylie MacLellan LEIRIA, Portugal/LONDON (Reuters) -Hundreds more people were evacuated from their homes as wildfires blistered land in France, Spain and Portugal on Friday, while officials in Europe issued health warnings for the heatwave in the coming days. More than 1,000 firefighters, supported by water-bomber aircraft, have battled since Tuesday to control two blazes in southwestern France that have been fanned by scorching heat, tinder-box conditions and strong winds. While temperatures dipped a little in Portugal, they were still expected to top 40 degrees Celsius …