_blank those qr codes up

- it's annoying when I click on something and it doesn't go in a tab
  when it should grr

go/go/templates/link_box.html

@@ -85,9 +85,9 @@
     {% with the_url|add:"?qr" as qr_url %}
         <pre>
             <strong>QR Downloads:</strong>
-            <a href="http://chart.googleapis.com/chart?cht=qr&chs=156x156&chl={{ qr_url }}">Small (156x156)</a>
-            <a href="http://chart.googleapis.com/chart?cht=qr&chs=322x322&chl={{ qr_url }}">Medium (322x322)</a>
-            <a href="http://chart.googleapis.com/chart?cht=qr&chs=522x522&chl={{ qr_url }}">Large (522x522)</a>
+            <a href="http://chart.googleapis.com/chart?cht=qr&chs=156x156&chl={{ qr_url }}" target="_blank">Small (156x156)</a>
+            <a href="http://chart.googleapis.com/chart?cht=qr&chs=322x322&chl={{ qr_url }}" target="_blank">Medium (322x322)</a>
+            <a href="http://chart.googleapis.com/chart?cht=qr&chs=522x522&chl={{ qr_url }}" target="_blank">Large (522x522)</a>
         </pre>
     {% endwith %}