Font color on Downstream build view

[jacksoncage]

Font color on Downstream build view should be white.

[djonsson]

<td class="pane-header">
  <a href="#" class="sortheader">Downstream build view status<span class="sortarrow"></span></a></td>

table.sortable a.sortheader {
    text-decoration: none;
    color: black;
    display: block;
}