title: How to retrieve a list of categories/ tag in Wordpress REST API
body: <p>Does anyone know how to get a list of categories in Wordpress JSON Rest API?
  It seems the current API does not support retrieve list of categories (While XML-RPC does). </p>
  
  <p><a href="http://developer.wordpress.com/docs/api/" rel="noreferrer">http://developer.wordpress.com/docs/api/</a></p>