Description of problem:
vm.undo_snapshot() method does not support passing correlation_id parameter like other actions in sdk:

>>> vm.preview_snapshot(params.Action(snapshot=snap))
<ovirtsdk.xml.params.Action object at 0x26f5850>
>>> vm.undo_snapshot(correlation_id='x')
Traceback (most recent call last):
  File "<input>", line 1, in <module>
TypeError: undo_snapshot() got an unexpected keyword argument 'correlation_id'
>>> vm.undo_snapshot()
<ovirtsdk.xml.params.Action object at 0x3afdc50>



Version-Release number of selected component (if applicable):
rhevm-sdk-python-3.4.1.0-2.el6ev.noarch

How reproducible:
100%

Steps to Reproduce:
1. Try to pass correlation_id parameter to undo_snapshot function in sdk


Actual results:
fails with TypeError: undo_snapshot() got an unexpected keyword argument 'correlation_id'

Expected results:
python-sdk should allow user to pass correlation_id parameter for all actions

Additional info: