Allow preference sections to define CSS class names

Thomas Bruederli

2015-04-17 a3644638aaf0418598196a870204e0b632a4c8ad

 plugins/managesieve/skins/classic/managesieve_mail.css

@@ -1,6 +1,6 @@
#messagemenu li a.filterlink {
  background-image: url(images/filter.png);
  background-position: 7px 0;
  background-position: 7px 1px;
}

#sievefilterform {