controllers: move controllers base class from lib/base to controllers TG quickstart put it in lib/base.py , but it fits better on the controllers layer as a base there. The contributing docs were a bit ahead of time ... but with a typo.

[tox]
minversion = 1.8
envlist = py27-pytest

[testenv]
setenv =
    PYTHONHASHSEED = 0
deps =
    -r{toxinidir}/dev_requirements.txt
    python-ldap
    python-pam
commands =
    pytest: py.test {posargs}