[0.84] fix history for contract

git-svn-id: https://forge.indepnet.net/svn/glpi/branches/0.84-bugfixes@22344 35612d4c-9d10-0410-837c-bf9dd1be60d7
[0.84] clean TODO

git-svn-id: https://forge.indepnet.net/svn/glpi/branches/0.84-bugfixes@22345 35612d4c-9d10-0410-837c-bf9dd1be60d7