* proofread & update zh-CN setting form locale * Pull in new devise zh-CN translations from their wiki https://github.com/plataformatec/devise/wiki/I18n, more precisely https://gist.github.com/Artoria2e5/6d2a06ca9e92a417afc627b5000f4690 * pull in zh-CN translation for doorkeeper ... from https://github.com/doorkeeper-gem/doorkeeper-i18n/pull/31/