(#21262) Removed nonexisting parameter from comment

$template can't be found in vhost.pp
Remove firewall resource

The firewall declarations should not be handled by the apache module
Update apache::mod::php's error message to be correct
Merge pull request #228 from jyrkiput/#21262

(#21262) Removed nonexisting parameter from comment
Merge pull request #229 from hunner/remove_firewall

Remove firewall resource
Merge pull request #232 from hunner/php_prefork

Update apache::mod::php's error message to be correct