git-svn-id: http://piwigo.org/svn/trunk@3028 68402e56-0260-453c-a942-63ccdbb3a9ee
Add dutch language. Thank you to Eric git-svn-id: http://piwigo.org/svn/trunk@2715 68402e56-0260-453c-a942-63ccdbb3a9ee