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.

<?xml version="1.0" encoding="UTF-8" ?>
<rest-server>
    <!--  The port which the ArtifactDatabase (ArtifactServer) will bind to. -->
    <port>8181</port>
    <listen>localhost</listen>
</rest-server>