clean comments


git-svn-id: https://forge.indepnet.net/svn/glpi/trunk@20326 35612d4c-9d10-0410-837c-bf9dd1be60d7
fix doc


git-svn-id: https://forge.indepnet.net/svn/glpi/trunk@20327 35612d4c-9d10-0410-837c-bf9dd1be60d7
fix contracts cost


git-svn-id: https://forge.indepnet.net/svn/glpi/trunk@20329 35612d4c-9d10-0410-837c-bf9dd1be60d7
minor fix


git-svn-id: https://forge.indepnet.net/svn/glpi/trunk@20331 35612d4c-9d10-0410-837c-bf9dd1be60d7