Fixes Scoping bugs

Fixes scoping bugs, removes unnecessary use of self.xx.

Change-Id: I0c9504a11d25cddb7f4e04eed2a631389297fdd9
add py27 to default tox

because we should be unit testing when you run tox

Change-Id: If0bba55d80d900ccd39c7714edcd0bfd79d31467
Merge "add py27 to default tox"
Merge "Fixes Scoping bugs"
Merge branch 'master' of https://github.com/openstack/tempest