Bug in organizations support

[alexandrezia]

Using php-chef with organizations, not all url endpoints must have /organizations/organization_name, If you try to check server status https://docs.chef.io/api_chef_server.html#status It must be done using http://server/_status But php-chef is using http://server/organizations/org_name/_status which causes an error.

To reproduce, just test as:

$chef = new Jenssegers\Chef\Chef(https://chef_server/organizations/my_organization", 'my_username', 'key_path', "12.0.1", TRUE);
 $chef->get('/_status');