hg: bump minimum version to 4.1.1 522cfb2be9e1 introduced test_custom_hooks_preoutgoing, but thorough testing now reveals that the test failed with Mercurial 4.0 to 4.1.0 . Instead of investigating and fixing code or test, just accept this more than one year old version as minimum.

[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}