code: function path( opts ) {
  	var search = '?';
  	if ( opts.query ) {
  		search += opts.query;
  		search += '&';
  	}
  	search += 'page=' + opts.page;
  	search += '&';
  	search += 'per_page=' + opts.per_page;
  	return opts.pathname + search;
  }
docs: FUNCTION: path( opts )
  Returns a resource path (pathname + search).
  
  @param {Object} opts - function options
  @param {String} opts.pathname - resource pathname
  @param {Number} opts.page - resource page
  @param {Number} opts.per_page - page size
  @param {String} opts.query - params portion of a query string
  @returns {String} resource path