Add github user id to users in box

db/migrate/20160819090641_add_github_user_id_to_users.rb

@@ -0,0 +1,8 @@
+Sequel.migration do
+  change do
+    alter_table :users do
+      add_column :github_user_id, :bigint
+      add_index  :github_user_id
+    end
+  end
+end