Bugfix: urllib-->urllib2.
Bugfix: urllib-->urllib2.

If there is no internet, it will not throw an error,
but it will quit as expected with a proper message.

Change-Id: I133d932d4713b6bb6f452736c71b38ce5c5a6310
Signed-off-by: jose.lausuch <a4ed9890ad7f6494ac84a749f29a4dc3449a1186@ericsson.com>

opnfv/functest,mywulin/functest,opnfv/functest,mywulin/functest