Point to the correct grit with the tag_count and branch_count methods.

Gemfile

@@ -9,7 +9,7 @@ gem "stamp"
 gem "kaminari"
 gem "haml-rails"
 gem "jquery-rails"
-gem "grit", :git => "https://github.com/gitlabhq/grit.git", :ref => "810e3c11787e9d84c5925a7edc3264db0f04bb49"
+gem "grit", :git => "https://github.com/gitlabhq/grit.git", :ref => "9536f306645f2d6b1f993ae02d3a29893ba8881f"
 gem "gitolite", :git => "https://github.com/gitlabhq/gitolite-client.git", :ref => "9b715ca8bab6529f6c92204a25f84d12f25a6eb0"
 gem "carrierwave"
 gem "six"