Update scripts in tools folder for release THIRTEEN

Change-Id: I4f8759eaea83f2e110f1c0ff4c7f59b7e184e2ee
Signed-off-by: garciadeblas <gerardo.garciadeblas@telefonica.com>
diff --git a/tools/env-ftp b/tools/env-ftp
index fafb2be..156fc9c 100644
--- a/tools/env-ftp
+++ b/tools/env-ftp
@@ -17,7 +17,7 @@
 #######################################################################################
 
 SERVER="ftp://osm-download.etsi.org"
-FOLDER="osm-12.0-twelve"
+FOLDER="osm-13.0-thirteen"
 FTP_OPTS=""
 
 # Define your FTP credentials in a separate (private file)