By Nelson Renteria SAN SALVADOR (Reuters) -The death toll from storm Julia rose to at least 25 on Monday, officials said, with most victims in El Salvador and Guatemala, as the weakening storm dumped heavy rain on a swath of Central America and southern Mexico. Salvadoran authorities reported the deaths of 10 people, including five soldiers, and said more than 1,000 people were evacuated. In Guatemala, eight were killed between Sunday and Monday, according to officials, while seven were injured and hundreds more affected by the storm. Authorities in both El Salvador and Guatemala also canceled…