Steps to do on releasing

Run git flow release start <version>
change version number in App/perlbrew.pm
update "Changes" file
Run ./dev-bin/build.sh to build new standalone perlbrew executable
Run shipit -n to make sure no test failures. Fix test failures if any.
Run git flow release finish <version>
Run git checkout master
Run git push; git push --tags
Run shipit
Update webpages of release note etc