Add libvirt-guests configuration file.
utils_net: Add new function to the class Bridge() for STP status

1) improve the return of function Bridge().get_structure()
2) add function to get the status of STP for specified bridge
3) make corresponding modification for list_br() and list_iface()
test_getstructure: check Bridge.get_structure()'s return as new format
pool_xml: Support format type for disk pool

Signed-off-by: Yanbing Du <ydu@redhat.com>
Merge pull request #1860 from rbian/libvirt_guests

Add libvirt-guests configuration file.
Merge pull request #1865 from PandaWei/develop

utils_net: add function to get the status of STP for specified bridge
virttest.openvswitch: update get ovs version pattern

Signed-off-by: Xu Tian <xutian@redhat.com>
utils_spice: Adding new functions with support for Windows

We want to add support for running spice tests on
Windows client by being able to install usbclerk
and also kill remote-viewer window if it's open.
Also, adding kill_app function to kill an
application on a VM.

Reviewed by: Swapna Krishnan <skrishna@redhat.com>
Merge pull request #1876 from swapnakrishnan2k/add_new_func_utils_spice

Adding new functions with support for Windows
Merge pull request #1887 from xutian/fix_ovs_version

virttest.openvswitch: update get ovs version pattern
Merge pull request #1873 from will-Do/format_type

pool_xml: Support format type for disk pool
virttest.utils_test.libvirt: update disk source of the VM

Signed-off-by: Alex Jia <ajia@redhat.com>