hg: read everything from hgrc, without config section whitelisting (Issue #246) The whitelisting seems pointless, is hard to maintain, and can't be customized. Also, mercurial.localrepo.instance will read the full config file anyway.

[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}