This command will enable the namespaces feature introduced in v4.0. It will move every project in its namespace folder.
Note:
Example:
Old path: git@example.org:myrepo.git
New path: git@example.org:username/myrepo.git
or git@example.org:groupname/myrepo.git
bundle exec rake gitswarm:enable_namespaces RAILS_ENV=production