[documentation] don't described required rights for vmware integration for non priveleged user

Detailed bug description:

There are missed required access right in documentation for integrate vmware into openstack with dvs plugin.
link: http://docs.openstack.org/mitaka/config-reference/compute/hypervisor-vmware.html

If we want to change user which communicate with vcenter we should add more access right:
1.
   virtual machine - > configuration -> Modify device settings
2.
   virtual machine -> provisioning -> create template from virtual machine

there are incorrect place of section "Session", it doesn't placed in "Virtual machine" section,
 it presents in main level
   not virtual machine -> session -> "validate session" | "view and stop session"
      but in
   session -> "validate session" | "view and stop session"

Steps to reproduce:
configure vmware with dvs plugin using instruction http://docs.openstack.org/mitaka/config-reference/compute/hypervisor-vmware.html with user who don't have root privilege

Expected results:
ostf successfull performs tests

Actual result:
test fails
 in log files:

2016-08-04 12:05:43.003 21823 ERROR oslo_messaging.rpc.dispatcher Traceback (most recent call last):
2016-08-04 12:05:43.003 21823 ERROR oslo_messaging.rpc.dispatcher File "/usr/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 138, in _dispatch_and_reply
2016-08-04 12:05:43.003 21823 ERROR oslo_messaging.rpc.dispatcher incoming.message))
2016-08-04 12:05:43.003 21823 ERROR oslo_messaging.rpc.dispatcher File "/usr/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 185, in _dispatch
2016-08-04 12:05:43.003 21823 ERROR oslo_messaging.rpc.dispatcher return self._do_dispatch(endpoint, method, ctxt, args)
2016-08-04 12:05:43.003 21823 ERROR oslo_messaging.rpc.dispatcher File "/usr/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 127, in _do_dispatch
2016-08-04 12:05:43.003 21823 ERROR oslo_messaging.rpc.dispatcher result = func(ctxt, **new_args)
2016-08-04 12:05:43.003 21823 ERROR oslo_messaging.rpc.dispatcher File "/usr/lib/python2.7/dist-packages/cinder/volume/manager.py", line 3523, in initialize_connection
2016-08-04 12:05:43.003 21823 ERROR oslo_messaging.rpc.dispatcher connector)
2016-08-04 12:05:43.003 21823 ERROR oslo_messaging.rpc.dispatcher File "/usr/lib/python2.7/dist-packages/cinder/volume/manager.py", line 1473, in initialize_connection
2016-08-04 12:05:43.003 21823 ERROR oslo_messaging.rpc.dispatcher raise exception.VolumeBackendAPIException(data=err_msg)
2016-08-04 12:05:43.003 21823 ERROR oslo_messaging.rpc.dispatcher VolumeBackendAPIException: Bad or unexpected response from the storage volume backend API: Driver initialize connection failed (error: Permission to perform this operation was denied.
2016-08-04 12:05:43.003 21823 ERROR oslo_messaging.rpc.dispatcher Cause: Server raised fault: 'Permission to perform this operation was denied.'
2016-08-04 12:05:43.003 21823 ERROR oslo_messaging.rpc.dispatcher Faults: [NoPermission]
2016-08-04 12:05:43.003 21823 ERROR oslo_messaging.rpc.dispatcher Details: {'privilegeId': 'VirtualMachine.Config.Resource', 'object': 'vm-105'}).
2016-08-04 12:05:43.003 21823 ERROR oslo_messaging.rpc.dispatcher
2016-08-04 12:05:43.006 21823 ERROR oslo_messaging._drivers.common [req-ed19873c-6662-43e4-abd9-ca426773e61d 19443dac073e4a00a1d28a142207f7eb 53961f0586fb4e739cd6952a5d724e6b - - -] Returning

2016-08-04T11:00:42.312052+00:00 err: 2016-08-04 11:00:42.309 9285 ERROR oslo_messaging.rpc.dispatcher [req-3ba8c7ad-8302-4d79-ad93-69aeb5559c45 eb81970ed00d425eb2a8925b57617154 a1ad0278eac64be9b36255390ad1302c - - -] Exception during message handling: Permission to perform this operation was denied.
Cause: Server raised fault: 'Permission to perform this operation was denied.'
Faults: [NoPermission]
Details: {'privilegeId': 'VirtualMachine.Provisioning.CreateTemplateFromVM', 'object': 'vm-112'}
2016-08-04 11:00:42.309 9285 ERROR oslo_messaging.rpc.dispatcher Traceback (most recent call last):
2016-08-04 11:00:42.309 9285 ERROR oslo_messaging.rpc.dispatcher File "/usr/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 138, in _dispatch_and_reply
2016-08-04 11:00:42.309 9285 ERROR oslo_messaging.rpc.dispatcher incoming.message))
2016-08-04 11:00:42.309 9285 ERROR oslo_messaging.rpc.dispatcher File "/usr/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 185, in _dispatch
2016-08-04 11:00:42.309 9285 ERROR oslo_messaging.rpc.dispatcher return self._do_dispatch(endpoint, method, ctxt, args)
2016-08-04 11:00:42.309 9285 ERROR oslo_messaging.rpc.dispatcher File "/usr/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 127, in _do_dispatch
2016-08-04 11:00:42.309 9285 ERROR oslo_messaging.rpc.dispatcher result = func(ctxt, **new_args)
2016-08-04 11:00:42.309 9285 ERROR oslo_messaging.rpc.dispatcher File "/usr/lib/python2.7/dist-packages/nova/exception.py", line 110, in wrapped
2016-08-04 11:00:42.309 9285 ERROR oslo_messaging.rpc.dispatcher payload)
2016-08-04 11:00:42.309 9285 ERROR oslo_messaging.rpc.dispatcher File "/usr/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 220, in __exit__
2016-08-04 11:00:42.309 9285 ERROR oslo_messaging.rpc.dispatcher self.force_reraise()
2016-08-04 11:00:42.309 9285 ERROR oslo_messaging.rpc.dispatcher File "/usr/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 196, in force_reraise
2016-08-04T11:01:00.851325+00:00 debug: 2016-08-04 11:01:00.849 9285 DEBUG oslo_service.periodic_task [req-f1034d7c-c062-4d1f-8be6-f02f11236f5a - - - - -] Running periodic task ComputeManager.update_available_resource run_periodic_tasks /usr/lib/python2.7/dist-packages/oslo_service/periodic_task.py:215

Reproducibility: always