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: Rename virttest/nfs_unnittest.py to virttest/nfs_unittest.py

Because virttest/nfs_unnittest.py is end with _unnittest.py, not
_unittest.py, tool/run_unittest.py cannot find this module.

Signed-off-by: Li Yang <liyang.fnst@cn.fujitsu.com>
Merge pull request #813 from liyangfnst/nfs_unittest

virt: Rename virttest/nfs_unnittest.py to virttest/nfs_unittest.py
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