Add Google site verification tag to enable access to Google Webmaster Tools.

Author: Charles Korn

_layouts/default.haml

@@ -9,6 +9,7 @@
     %script{:type => "text/javascript", :src  => "/assets/scripts/jquery-2.1.0.min.js"}
     %meta{name: "description", content: ""}
     %meta{:name => 'viewport', :content => 'width=device-width'}
+    %meta{:name => 'google-site-verification', :content => 'JfULntk-IIjEWdxvJDrNSghNUYUakzA6jiRt4tQYCZA'}
 
   %body
     %noscript