update download to enable it on O2

DYNAMICO/download.sh

 #!/bin/bash
-tar -xvf DYNAMICO-XIOS.tar
+export TARBALL="DYNAMICO-XIOS.tar"
+
+if [[ $HOSTNAME = *"occigen"* ]]; then
+  tar -xvf /store/CINES/dci/SHARED/abs/DYNAMICO/$TARBALL
+elif [ -f $TARBALL ]; then
+  tar -xvf $TARBALL
+else
+  echo "tarball not found"
+  exit 1
+fi
+