unify centos sshd config and update it to latest upstream
fix deprecation warning 'Puppet::Util.execute is deprecated; please use Puppet::Util::Execution.execute'
no need to have these quotes
Merge branch 'master' of https://github.com/duritong/puppet-sshd
Nagios support now compatible with my nagios module
Fix parameter name
Add parameters to the nagios service