virttest.qemu_devices: Lose verbose=False incompatible with at 0.14

This is an attempt to better fix the issue where system_output
doesn't have the verbose parameter in autotest 0.14. It is better
and less desruptive to simply lose the parameter, and we can
get it back once 0.15 rpms are available on Fedora.

Signed-off-by: Lucas Meneghel Rodrigues <lmr@redhat.com>
virt: Improve runtime of utils_net unittest

Reduced the internal Cartesian variant set while retaining
testing of key values.  The result is much faster unit-testing
while loosing very little in depth.

Signed-off-by: Chris Evich <cevich@redhat.com>
virttest.qemu_devices: Workaround for RHEL5

RHEL5 doesn't support both 'aio' and 'id' for drive
files. So check whether such options are supported
and don't add them in case they are not.

Signed-off-by: Lucas Meneghel Rodrigues <lmr@redhat.com>
Merge branch 'next' - Virt Test 2013.09.03
virt.tests.netperf: Some modification on netperf

Get netperf src package from web;
Make the script compatible with netperf 2.6.0;
Modify the method of get winutils vol;
Using wait_for  to wait until all net perf clients start to work;
Reorganize the configure file.

Signed-off-by: Yunping Zheng <yunzheng@redhat.com>