PROCEDURE: istp_init PURPOSE: Initializes system variables for ISTP data. Can be called from idl_startup to set custom locations. HISTORY Written by Davin Larson $LastChangedBy: nikos $ $LastChangedDate: 2014-07-09 12:05:16 -0700 (Wed, 09 Jul 2014) $ $LastChangedRevision: 15535 $ $URL: svn+ssh://thmsvn@ambrosia.ssl.berkeley.edu/repos/spdsoft/trunk/general/missions/wind/istp_init.pro $