[0.85] CS + fix empty with update + fix comments + W3C + new rights + bloc doc (r21000)

git-svn-id: https://forge.indepnet.net/svn/glpi/branches/0.85-work@21061 35612d4c-9d10-0410-837c-bf9dd1be60d7
[0.85] CS

git-svn-id: https://forge.indepnet.net/svn/glpi/branches/0.85-work@21062 35612d4c-9d10-0410-837c-bf9dd1be60d7