[0.85] Exclude some images / signature when importing a mail fixed #2807
Text mail content 


git-svn-id: https://forge.indepnet.net/svn/glpi/branches/0.85-work@21192 35612d4c-9d10-0410-837c-bf9dd1be60d7
[0.85] fix bigdump generation due to validity of logins


git-svn-id: https://forge.indepnet.net/svn/glpi/branches/0.85-work@21193 35612d4c-9d10-0410-837c-bf9dd1be60d7