Fixed unitary tests. If not specified, the name a variable in a dynSeries object is not '--NaN--' but 'Variable_xx' where x is the number of the variable.
Added missing case for set_names in subsref. This commit and the previous one fix the bug in @dynSeries::set_names method reported at http://www.dynare.org/stepan/dynare/tests/report-f4c01a43bc2882e7fd18f3cd82344fff9644088c.log.