Resolved issue 0000715: Fix bad format of email with name contains special character.

+ Ignore all for plugins and theme directories

git-svn-id: http://piwigo.org/svn/branches/branch-1_7@2049 68402e56-0260-453c-a942-63ccdbb3a9ee

include/functions_mail.inc.php

@@ -78,7 +78,7 @@ function format_email($name, $email)
 
     if (strpos($email, '<') === false)
     {
-      return $cvt7b_name.' <'.$email.'>';
+      return '"'.addslashes($cvt7b_name).'" <'.$email.'>';
     }
     else
     {