Remove application/x-tar file extension test as it might not exist in nginx...

Aleksander Machniak

2016-05-20 9e64dc2debfa1c7410f82bf71f4d10856751e258

 skins/classic/mail.css

@@ -746,6 +746,11 @@
  background-position: 0 -290px;
}

.messagelist tr.flaggedroot td.flag span
{
  background-position: 0 -136px;
}

.messagelist tr > .flag span.flagged
{
  background-position: 0 -153px;