Add handler for Move activity (#9629)

db/migrate/20181226021420_add_also_known_as_to_accounts.rb

@@ -0,0 +1,5 @@
+class AddAlsoKnownAsToAccounts < ActiveRecord::Migration[5.2]
+  def change
+    add_column :accounts, :also_known_as, :string, array: true
+  end
+end