NAME: spd_default_local_data_dir PURPOSE: Returns the default data directory for file downloads for varius projects. It is used for the GUI configuration settings. Simplified replacement for root_data_dir CALLING SEQUENCE: spd_default_local_data_dir INPUT: none OUTPUT: (string) Directory in user's home path HISTORY: $LastChangedBy: $ $LastChangedDate: $ $LastChangedRevision: $ $URL: $