Remove uncalled params, extend docs for CA generation
Remove uncalled params, extend docs for CA generation

lazyfrosch/puppet-icinga2,lazyfrosch/puppet-icinga2,Icinga/puppet-icinga2,Icinga/puppet-icinga2-rewrite,Icinga/puppet-icinga2-rewrite,lazyfrosch/puppet-icinga2,Icinga/puppet-icinga2,Icinga/puppet-icinga2-rewrite