Fix conflict with composer

This is a fix for error
```sh
Error: Duplicate declaration: Package[curl] is already declared in file /etc/puppet/modules/composer/manifests/init.pp:88; cannot redeclare at /etc/puppet/modules/solr/manifests/install.pp:28 on node precise64
Error: Duplicate declaration: Package[curl] is already declared in file /etc/puppet/modules/composer/manifests/init.pp:88; cannot redeclare at /etc/puppet/modules/solr/manifests/install.pp:28 on node precise64
```
that was because of conflict of package names with https://github.com/puphpet/puppet-composer.git