NAME: get_rt_path PURPOSE: gets the directory of the calling routine. Used for reliably looking up resource paths across platform CALLING SEQUENCE: get_rt_path,path OUTPUT: path: the path of the routine that called get_rt_path NOTES: This is a general version of specific routines like getctpath. Eventually those routines should be replaced with this one. $LastChangedBy: pcruce $ $LastChangedDate: 2009-07-16 16:38:39 -0700 (Thu, 16 Jul 2009) $ $LastChangedRevision: 6439 $ $URL: svn+ssh://thmsvn@ambrosia.ssl.berkeley.edu/repos/spdsoft/trunk/general/misc/get_rt_path.pro $