Changeset 4186 for palm/trunk/TESTS/cases/urban_environment_restart/OUTPUT/urban_environment_restart_ts.001.nc

Enable limitation of Obukhov length so that it does not become zero; to read input data from netcdf in init_3d_model use provided module variables instead of defining local ones; tests updated because changes in Obukhov lengths causes small differences during the initial phase of the run