+$(basename $0 .sh) will completely set up a web site, including a domain
+name and an apache configuration file. The site will be acquired from a
+git repository and configured. At the end of this script, the result should
+be an almost working website; you may need to fix the site configuration,
+create databases and so forth.
+
+This script must be run as sudo or root; it makes changes to system files.