Do not over write CatalogResources for a job on localhost with SalomeLauncher.

Do not over write CatalogResources for a job on localhost with SalomeLauncher.

When launching a job on localhost, SalomeLauncher used to create a new CatalogResources
file which contained only "localhost".
This behavior was changed in order to be able to use every resource of the original catalog
in a job launched on localhost.

This is needed by salome cfd.