clean


git-svn-id: https://forge.indepnet.net/svn/glpi/trunk@22163 35612d4c-9d10-0410-837c-bf9dd1be60d7
work on db cleaning on purge


git-svn-id: https://forge.indepnet.net/svn/glpi/trunk@22164 35612d4c-9d10-0410-837c-bf9dd1be60d7
missing file in last commit


git-svn-id: https://forge.indepnet.net/svn/glpi/trunk@22165 35612d4c-9d10-0410-837c-bf9dd1be60d7