By Michael Francis Gore and Catherine MacDonald MADRID (Reuters) -Spaniards kept to the shade in parks, headed for the beach or sipped iced drinks to tackle stifling temperatures as high as 43C (110F), as the country experiences its second heatwave this year. Warm summer sunshine combined with a hot air front from North Africa have sent temperatures soaring, state meteorological forecasters AEMET said on Sunday, and the heatwave could last until July 14. The highest recorded temperature on Sunday was 43C (110F) by the Guadalquivir river near Seville in southern Spain and in Badajoz, towards th…