New Blockish theme

* Adding a new blockish theme with a blue header and an adaptive
design.
* Printable PDF version still needs some work, but overall, this is a
nice layout.

templates/unstyled/css/pdf.css

@@ -13,4 +13,8 @@ body.pdf {
         border: none;
         text-align: left;
     }
-}
+
+    a[href$='.pdf'] {
+        display: none;
+    }
+}