Avoid unefined field error when running right rules engine


git-svn-id: https://forge.indepnet.net/svn/glpi/trunk@20281 35612d4c-9d10-0410-837c-bf9dd1be60d7
improve rule list display


git-svn-id: https://forge.indepnet.net/svn/glpi/trunk@20282 35612d4c-9d10-0410-837c-bf9dd1be60d7
fix dictionnary clean cache


git-svn-id: https://forge.indepnet.net/svn/glpi/trunk@20288 35612d4c-9d10-0410-837c-bf9dd1be60d7