Satisfy the new rubocop :)

db/migrate/20160519203051_add_developers_can_merge_to_protected_branches.rb

@@ -3,7 +3,11 @@ class AddDevelopersCanMergeToProtectedBranches < ActiveRecord::Migration
 
   disable_ddl_transaction!
 
-  def change
+  def up
     add_column_with_default :protected_branches, :developers_can_merge, :boolean, default: false, allow_null: false
   end
+
+  def down
+    remove_column :protected_branches, :developers_can_merge
+  end
 end

db/migrate/20160801163709_add_submitted_as_ham_to_spam_logs.rb

@@ -14,7 +14,11 @@ class AddSubmittedAsHamToSpamLogs < ActiveRecord::Migration
 
   disable_ddl_transaction!
 
-  def change
+  def up
     add_column_with_default :spam_logs, :submitted_as_ham, :boolean, default: false
   end
+
+  def down
+    remove_column :spam_logs, :submitted_as_ham
+  end
 end