Description of problem: In Zanata 3.3, a project maintainer can request to add the current project/version to a version group, by clicking "Request to add project to group" in the "Actions" menu, searching for a group by name, then composing an email and hitting "Send Message". In 3.4, this navigation path has been removed. We should bring it back. Version-Release number of selected component (if applicable): 3.4
Migrated; check JIRA for bug status: http://zanata.atlassian.net/browse/ZNTA-365