XWiki XML Files Code Style

XWiki XML Files should follow these rules:

• Have a proper License header
• Use xwiki:XWiki.Admin as the author, contentauthor and creator
• Use 1.1 as the version
• Use false for minoredit
• Have an empty defaultLanguage entry
• Have an empty comment entry
• Indent the XML using 2 characters for indentation

This can be done using the "mvn xar:format" Maven command, see Generating a XAR for your build.