python: Use a pure python implementation of 'vir*GetConnect'
python: Use a pure python implementation of 'vir*GetConnect'

The API docs explictly warn that we shouldn't use the C vir*GetConnect calls
in bindings: doing so can close the internal connection pointer and cause
things to get screwy. Implement these calls in python.

Signed-off-by: Cole Robinson <7cd45ff6ad1fb7cf556a02797d774247851499f8@redhat.com>

cardoe/libvirt-python,cardoe/libvirt-python,libvirt/libvirt-python,cardoe/libvirt-python,libvirt/libvirt-python,libvirt/libvirt-python