vcs: fix get_changesets to .reverse() list of revision hashes in place instead of using reversed() This is slightly more performant, and will also make CollectionGenerator work with reverse=True. Before, CollectionGenerator was used on get_changesets, but never with reverse option. Trying to use reverse, it would fail when applying len(): TypeError: object of type 'listreverseiterator' has no len()

[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}