model: inline superfluous "helper" methods __get_changeset_status wasn't even used and has simply been removed. Notification.__get_notification reimplemented BaseModel._get_instance, warts and all, and has been replaced by calls to that method. The rest were just needless indirection, and have been inlined.

[tox]
minversion = 1.8
envlist = py{26,27}-pytest

[testenv]
setenv =
    PYTHONHASHSEED = 0
deps =
    -r{toxinidir}/dev_requirements.txt
    py26-pytest: unittest2
    python-ldap
    python-pam
commands =
    pytest: py.test {posargs}