Laravel Carbon Difference For Humans Bahasa Indonesia

app.php

<?php

// app/config/app.php

return array(

    	// ... konfigurasi lainnya ...

	'timezone' => 'Asia/Jakarta',

	'locale' => 'id',

	'providers' => array(

		// ... service provider lainnya ...

		'Laravelrus\LocalizedCarbon\LocalizedCarbonServiceProvider',

	),

	'aliases' => array(

		// ... alias lainnya ...

		'LocalizedCarbon'   => 'Laravelrus\LocalizedCarbon\LocalizedCarbon',
		'DiffFormatter'     => 'Laravelrus\LocalizedCarbon\DiffFactoryFacade',
	),

);

composer.json

{
    "name": "laravel/laravel",
	"description": "The Laravel Framework.",
	"keywords": ["framework", "laravel"],
	"license": "MIT",
	"type": "project",
	"require": {
		"laravel/framework": "4.2.8",
		"laravelrus/localized-carbon": "1.3.3"
	},
	"autoload": {
		"classmap": [
			"app/commands",
			"app/controllers",
			"app/models",
			"app/database/migrations",
			"app/database/seeds",
			"app/tests/TestCase.php"
		],
		"psr-4": {
			"Acme\\": "app/Acme"
		}
	},
	"scripts": {
		"post-install-cmd": [
			"php artisan clear-compiled",
			"php artisan optimize"
		],
		"post-update-cmd": [
			"php artisan clear-compiled",
			"php artisan optimize"
		],
		"post-create-project-cmd": [
			"php artisan key:generate"
		]
	},
	"config": {
		"preferred-install": "dist"
	},
	"minimum-stability": "stable"
}

global.php

<?php

// app/start/global.php

// ... isi file global lainnya ...

DiffFormatter::extend('id', 'Acme\\DiffFormatters\\IdDiffFormatter');

IdDiffFormatter.php

<?php namespace Acme\DiffFormatters;

// app/Acme/DiffFormatters/IdDiffFormatter.php

use Laravelrus\LocalizedCarbon\DiffFormatters\DiffFormatterInterface;
use Lang;

class IdDiffFormatter implements DiffFormatterInterface {

    /**
     * format diffForHumans
     *
     * @param  bool $isNow
     * @param  bool $isFuture
     * @param  int  $delta
     * @param  int  $unit
     * @return string
     */
    public function format($isNow, $isFuture, $delta, $unit)
    {
        $local = Lang::choice("units.".$unit, $delta, array(), 'id');

        $text = $delta.' '.$local;

        if ($isNow)
        {
            $text .= ($isFuture) ? ' dari sekarang' : ' yang lalu';

            return $text;
        }

        $text .= ($isFuture) ? ' setelah' : ' sebelum';

        return $text;
    }

}

units.php

<?php

// app/lang/id/units.php

return [
    'second' => 'detik',
    'minute' => 'menit',
    'hour'   => 'jam',
    'day'    => 'hari',
    'week'   => 'minggu',
    'month'  => 'bulan',
    'year'   => 'tahun',
];

Ini cara pemakaiannya gimana ya?