Fix generation of dates when only one data series is used
In that case, load_xls_file_data crashes because the variable name is taken as the first date. See http://www.dynare.org/phpBB3/viewtopic.php?f=2&t=5650
In that case, load_xls_file_data crashes because the variable name is taken as the first date. See http://www.dynare.org/phpBB3/viewtopic.php?f=2&t=5650