Added more information about project installed

Before enhancement:
![capture d ecran 2014-11-30 a 21 05 49](https://cloud.githubusercontent.com/assets/667519/5239116/bf08c954-78d4-11e4-9d46-01767681be37.png)

After enhancement:
![capture d ecran 2014-11-30 a 21 03 16](https://cloud.githubusercontent.com/assets/667519/5239124/c4fbbf88-78d4-11e4-9ef6-4e8a394229ad.png)

Why don't need composer directly ?

```php
<?php

function get_symfony_version()
{
    $composer = json_decode(file_get_contents(__DIR__.'/composer.lock'), true);

    foreach ($composer['packages'] as $package) {
        if ('symfony/symfony' !== $package['name']) {
            continue;
        }

        return $package['version'];
    }
}

echo get_symfony_version();
```