Adds openstack's hacking library to tests

* The biggest change is to not allow importing of non-modules, which
  makes for more easily mocking, cleaner namespaces and makes understanding
  much easier.
* Renames some improperly named modules (for identity v3)
Simplify/improve neutron network show/list
Import only modules
Adds fixes for volume formatting
Impove code quality for subnet code
Merge branch 'network-refinement' of github.com:sudorandom/jumpgate into pep8

Conflicts:
	tox.ini
Trivial separation of different kinds of imports
Adjust AES import a bit
Merge pull request #119 from sudorandom/pep8

Adds openstack's hacking library to tests