Change to sufia master that moves legato dependency so the Pageview and Download models can use it

legato.diff

diff --git a/app/services/sufia/analytics.rb b/app/services/sufia/analytics.rb
index 6ad1a46..ee6e6c3 100644
--- a/app/services/sufia/analytics.rb
+++ b/app/services/sufia/analytics.rb
@@ -1,6 +1,5 @@
 require 'google/api_client'
 require 'oauth2'
-require 'legato'
 
 module Sufia
   module Analytics
diff --git a/lib/sufia.rb b/lib/sufia.rb
index 85ad7a1..5cbfca7 100644
--- a/lib/sufia.rb
+++ b/lib/sufia.rb
@@ -1,4 +1,5 @@
 require 'select2-rails'
+require 'legato'
 require 'nest'
 require 'mailboxer'
 require 'acts_as_follower'