zabbix-vsphere-import: Fix host group creation
zabbix-vsphere-import: Logging
zabbix-vsphere-import: Import vSphere Clusters as Zabbix hostgroups
zabbix-vsphere-import: Add the hosts to their respective cluster hostgroups
zabbix-vsphere-import: Add the VMs to their respective cluster/hostgroup
in Zabbix
zabbix-vsphere-import: Fix example config file
zabbix-vsphere-import: Cosmetics