allow to inject the css/js path

this allows to change the js / css path using the config

for example...

```php
$config = array (
            'base_url'		=> '...',
            'pdo'			=> '...,'
            'template' => array(
                'base_path' => array(
                    'css' => '..../vendors/xhprofio/public/css/',
                    'js' => '..../vendors/xhprofio/public/js/',
                )
            )
        );

        require_once __DIR__.'/../vendors/xhprofio/index.php';
````