pull RDS_Samba path from ENV VARS

pymods/mrdata_irods_config/mrdata_irods_config.py

 # python configuration definitions for MrData iRODS structure
 
+# NEED TO GET RID OF THIS STYLE OF CONF
+
+
 # mount point of the landing zone
-lz_basepath = "/RDS_Samba"
+#lz_basepath = "/RDS_Samba"
+
+import os
+lz_basepath = os.environ.get("MRDENV_MRI_ETL_PATH_DICOM_LZ")
 
 # uploader log file path
 uploader_log_path = lz_basepath + "/LOGS"