Fixed title colour to purple. Refs #18.

In Firefox it was shown in purple, while in Chrome it was blue. This fix forces
it to be purple.

Author: fdedden

style.css

@@ -101,6 +101,7 @@ body {
 }
 
 #header a {
+  color:           #3D1255;
   font-variant:    small-caps;
   font-weight:     100;
   font-size:       250%;