Develop php dep

I also needed to bump apt's version and update the php.ini templates. 

Now it's possible to configure PHP with:

```
node['php']['directives'] =  {
    'date.timezone' => 'Europe/London'
}

```

or in the Vagrantfile:

```javascript
    chef.json = {
      'php' => {
        'version' => '5.3',
        'directives' => {
            'date.timezone' => 'Europe/London'
        }
      }
    }
```

Related PR in the opscode's cookbook: https://github.com/opscode-cookbooks/php/pull/9