Revert "Bug 1386 - make sure site schemes use different
visited/unvisited link colors"

Color contrast is too low on errorbar

This reverts commit eaadab8fabc4d654ee812d8131f1e209d0f6b31c.
Merge pull request #34 from afuna/revert-bug1386

Revert "Bug 1386 - make sure site schemes use different visited/unvisited link colors"