incompatibility requirement PHP5/PHP5-FPM

If force to require PHP5 in the composer module the code in puphpet  

```
{% if php.modules.composer.installed == 1 %}
class { 'composer':
  require => Package['{{ nginx is defined? 'php5-fpm' : 'php5' }}'],
}
{% endif %} 
```
[https://github.com/puphpet/puphpet/blob/master/src/Puphpet/View/Vagrant/Modules/php.pp.twig#L80] Is inusable, because the module requirement overrides it.