autotest/virt-test — pull request #1671 by will-Do (2014-05-20 11:02:00+00:00)
Title: libvirt_xml: Support suspend mode in guest XML

For domain pm suspend operation, it requires a guest agent configured and running in the domain's guest OS, besides, it also needs enable suspend mode in guest XML:
```

```
Signed-off-by: Yanbing Du