[Issue] Created: (XWIKI-513) Document the Packager tool for both Maven2 and command line usage

[Vincent Massol (JIRA)]

Document the Packager tool for both Maven2 and command line usage
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                 Key: XWIKI-513
                 URL: http://jira.xwiki.org/jira/browse/XWIKI-513
             Project: XWiki
          Issue Type: Task
          Components: Documentation
            Reporter: Vincent Massol
         Assigned To: Vincent Massol