Currently dev.clojure.org is running the open source versions of the Atlassian tools - Confluence, JIRA, and Crowd.
Crowd - http://dev.clojure.org/crowd
Crowd is the single sign on provider used to manage groups, users, etc – changes to users and group membership should be made there.
Confluence - http://dev.clojure.org
Confluence is the wiki, and will continue to be used as it always has been.
JIRA - http://dev.clojure.org/jira
JIRA is the issue/bug tracker, and has just now (Oct 6) been setup by Contegix. It currently is a greenfield setup, and needs someone to setup the projects and structure the way Clojure admins deem appropriate.