Both crowdin and docsearch i18n configs use TW and CN over Hant and Hans. This should reduce some config confusions.
cc @ericnakagawa. Also, apparently you're working on algolia search i18n?
* Add Prettier formatting to source files and example files, and check that Prettier formatting is maintained on PRs
* Remove trailing-comma as we are using Node 6 on Circle
* Use latest Node 6 LTS version in Circle
* Remove unused test