Vue.config.keyCodes now support array type value
Vue.config.keyCodes now support array type value

NOTE:
  pick up from https://github.com/vuejs/vuejs.org/commit/3b139a6806216cde11b0ae5bae1cf622747dad00

potato4d/jp.vuejs.org,potato4d/jp.vuejs.org,vuejs/jp.vuejs.org,vuejs/jp.vuejs.org