Improve make_release script to optinally handle tagging and be more generic. It can now be used to prepare a fully configured version of flys. There are still some variables to set in the script or to be overwritten by environment variables.

#!/bin/bash

bin_dir=`dirname $0`
bin_dir=`readlink -f $bin_dir`
exec java \
    -Dlog4j.configuration=file://$bin_dir/log4j.properties \
    -Dconfig.file=$bin_dir/../doc/conf-oracle.xml \
    -jar $bin_dir/etl.jar