Description of problem:
[RFE] virt-manager should implement new rename API from libvirt

Version-Release number of selected component (if applicable):
libvirt-3.7.0-2.el7.x86_64
virt-manager-1.4.3-1.el7.noarch
qemu-kvm-rhev-2.9.0-16.el7_4.8.x86_64

How reproducible:
100%

Steps to Reproduce:
libvirt has new rename API '--domrename' to rename guest, but virt-manager use old way.
1. Prepare a inactive guest with snapshot.
# virsh domstate rhel7.4
shut off

# virsh snapshot-list rhel7.4
 Name                 Creation Time             State
------------------------------------------------------------
 s1                   2017-09-27 15:56:21 +0800 shutoff

2. Rename guest name to 'rhel7.4-new'.

2.1 From virt-manager GUI:

Launch virt-manager->Select guest and double click guest->Click 'Show virtual hardware details' button->Choose 'Overview'-> change Name to 'rhel7.4-new'->click 'Apply'

Result:
Error apply changes: Requested operation is not valid: cannot delete inactive domain with 1 snapshots

Traceback (most recent call last):
  File "/usr/share/virt-manager/virtManager/details.py", line 1887, in config_apply
    ret = self.config_overview_apply()
  File "/usr/share/virt-manager/virtManager/details.py", line 1979, in config_overview_apply
    self.vm.rename_domain(self.widget("overview-name").get_text())
  File "/usr/share/virt-manager/virtManager/domain.py", line 604, in rename_domain
    raise error
libvirtError: Requested operation is not valid: cannot delete inactive domain with 1 snapshots

2.2 with virsh command:
# virsh domrename rhel7.4 rhel7.4-name
error: Requested operation is not valid: cannot rename domain with snapshots


Actual results:
As description.

Expected results:
Implement new rename API from libvirt to virt-manager, then can make error message be accurate to user.

Additional info:
virt-manager reports same error as
# virsh undefine rhel7.4
error: Failed to undefine domain rhel7.4
error: Requested operation is not valid: cannot delete inactive domain with 1 snapshots