This patch copies the code for `apply_changeset`
from the `minilad` branch of
<https://hub.datalad.org/datalad/datalad-core.git>
because the code was not yet released and is
used for the `gitaudit`-feature. This is necessary
to release this project to pypi because pypi does
not allow directy references in uploaded releases.
Once the minilad-branch is merged and released, the
local copy should be replaced with the proper import,
i.e., with:
from datalad_core.gitutils import apply_changeset
Until this happens, this project should be released
as alpha, i.e.: 5.6.0aX.
