auth: cleanup of EXTERN_TYPE_INTERNAL Don't set it in top level namespace - it is a weak link between the database and the actual implementation. Don't make it more than that. Don't hardcode in that many places that 'internal' is the default - just call it DEFAULT_AUTH_TYPE. Don't use it for extern_name - it is only intended for use as extern_type. Remove unused uses.

[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}