Just before I forget the command again:
mvn site:site
in the doc module generates the HTML site in target/site.
rsync -aiv target/site/ user,project@web.sourceforge.net:htdocs/
transfers it to sourceforge.
On the it-dev server build from the release branch and run
mvn deploy -DaltDeploymentRepository=repo::default::file:/usr/local/share/www/it-dev/maven-repo/stable
to deploy to the stable Maven repo on it-dev.