Add IsoFlag
Remove Cdrom function from disk flag
Merge pull request #113 from pietern/iso

Add IsoFlag
Merge pull request #115 from dougm/esxcli

Support esxcli through vCenter
Use vim.CLIInfo for esxcli command flags and help

With this method, govc esxcli commands have the same short/long flags
and help text as esxcli.