Tags for fluentd backend

Hello and happy new year :-)

i'm a bit lost ! It seems that tags can be pulled from vsphere (https://github.com/cblomart/vsphere-graphite/issues/29), but i still don't have nothing indexed :-(

  "Backend": {
    "Type": "fluentd",
    "Port": 24224,
    "UseTags": true,
    "Hostname": "localhost"

Do i miss something ?

Thanks for your help.
