Description of problem:
There are 3 problems:
1. The help info for Hyper-V is not correct
2. hyperv.py has some problems for error: AttributeError: HyperV instance has no attribute 'ping'
3. Should uuid of snapshot of a VM should be sent by virt-who?

Version-Release number of selected component (if applicable):
virt-who-0.8-2.el6.noarch

How reproducible:
100%

Steps to Reproduce:
1. For problem 1: 
   # virt-who --help
   It will return the following info for Hyper-V:

   RHEV-M options:
   ^^^^^^^^^^

      Use this options with --hyperv

      --hyperv-owner=OWNER
                        Organization who has purchased subscriptions of the
                        products
      --hyperv-env=ENV    Environment where the Hyper-V belongs to
      --hyperv-server=SERVER
                        URL of the Hyper-V server to connect to
      --hyperv-username=USERNAME
                        Username for connecting to Hyper-V
      --hyperv-password=PASSWORD
                        Password for connecting to Hyper-V
   
   It should be "HYPER-V options:"

2. For problem 2: 
   # virt-who --hyperv --hyperv-owner=ACME_Corporation --hyperv-env=env1 --hyperv-server=10.66.13.142 --hyperv-username=Administrator --hyperv-password=qwer1234P -d -i 1
     ERROR: Fatal error:
     Traceback (most recent call last):
       File "/usr/share/virt-who/virt-who.py", line 514, in <module>
         main()
       File "/usr/share/virt-who/virt-who.py", line 505, in main
         if not virtWho.ping():
       File "/usr/share/virt-who/virt-who.py", line 228, in ping
         return self.virt.ping()
     AttributeError: HyperV instance has no attribute 'ping'
                                     ^^^^^^^^^^^^^^^^^^^^^^
   It should not return any error and virt-who can running as expected.

3. For Problem 3:
   (1) modify VIRTWHO_INTERVAL=3 in /etc/sysconfig/virt-who, and then restart virt-who service.
   (2) create a snapshot for one VM in Hyper-V
   (3) check the log of /var/log/rhsm/rhsm.log, a new uuid will be sent by virt-who, which is the snapshot's.

   Is the uuid of the snapshot needs to be sent?
  
Actual results:
As listed above.

Expected results:
For Problem 1:
  It should be "HYPER-V options:"
For Problem 2:
  It should not return any error and virt-who can running as expected.
For Problem 3:
  Please help to check if it's correct the uuid of VM's snapshot is sent by virt-who?

Additional info: