Fixed "TypeError: $(...).ready is not a function" when loading a Google Map with jQuery

Fixed "TypeError: $(...).ready is not a function" when loading a Google Map with jQuery

To test:
```php
jimport('jquery.framework');
$options = new JRegistry;
$options->set('autoload', 'jquery');

$google = new JGoogle($options);
$map = $google->embed('Maps');

$map->setCenter(array(48.1415102, 11.548463), 'Test');

$map->echoHeader();
$map->echoBody();
```

Before patch: you get the javascript error in the Console
After: map should be shown