* cleanup nagios.erb
* fixing 'service_perfdata_command' in nagios.erb
* add documentation for 'host_perfdata_command' & 'service_perfdata_command'
* add possibility to configure default_service with options process_perf_data & action_url
* add possibility to configure default_host with options process_perf_data & action_url

 Please enter the commit message for your changes. Lines starting
* finxing not working vHost in recipes/apache.rb:47
** apache cookbook in version 2.0 change behavior for apache_site
** https://github.com/onehealth-cookbooks/apache2/commit/fe0df65b0826678d3a9af678d732ad35bb95b5bf
Merge pull request #298 from cbek-taulia/master

fixing apache2_site & more configuration options + documentation