ANTOINE ROLLAND CENTRAL African Republic residents have turned out in huge numbers for presidential and legislative elections, the head of the U.N. mission said, despite rebels opening fire in some areas to try to scare away voters. Rebel groups hostile to President Faustin-Archange Touadera, who is seeking a second term, have carried out attacks and threatened to march to the capital and disrupt the election after the constitutional court this month rejected several candidates, including former President Francois Bozize. Touadera is considered the favourite in the field of 17 candidates. Vote counting began on Sunday and full provisional results are…