change default runuser and group for ubuntu.
change default runuser and group for ubuntu.

vkhatri/chef-icinga2-1,parallels-cookbooks/chef-icinga2,Icinga/chef-icinga2,CheggEng/chef-icinga2,CheggEng/chef-icinga2,parallels-cookbooks/chef-icinga2,vkhatri/chef-icinga2-1,vkhatri/chef-icinga2-1,stibi/chef-icinga2,acritox/chef-icinga2,openminds/chef-icinga2,acritox/chef-icinga2,openminds/chef-icinga2,saurabh-hirani/chef-icinga2,CheggEng/chef-icinga2,stibi/chef-icinga2,parallels-cookbooks/chef-icinga2,stibi/chef-icinga2,saurabh-hirani/chef-icinga2,Icinga/chef-icinga2,openminds/chef-icinga2,saurabh-hirani/chef-icinga2,Icinga/chef-icinga2,acritox/chef-icinga2