Log message:
python/wheel.mk: simplify a lot, and switch to 'installer' for installation

This follows the recommended bootstrap method (flit_core, build, installer).

However, installer installs different files than pip, so update PLISTs
for all packages using wheel.mk and bump their PKGREVISIONs.

Log message:
py-jaraco.itertools: updated to 6.4.1

v6.4.1

Bugfixes
- Remove use of ``OrderedDict`` in ``partition_dict``.

v6.4.0

Features
- Added ``summarize``.
- Require Python 3.8 or later.

v6.3.0

Added ``find_subseq``.

Log message:
py-jaraco.itertools: add missing tool dependency

Log message:
py-jaraco.itertools: updated to 6.2.1

v6.2.1
======
Fixed broken test in ``ensure_unique``.

v6.2.0
======
Added ``accumulate`` function.

v6.1.1
======
Fixed typo in ``ensure_unique`` doctest.

v6.1.0
======
Add ``ensure_unique`` function.

v6.0.3
======
Fixed doc build errors.

v6.0.2
======
Minor fixes.

v6.0.1
======
Switch to PEP 420 for namespace package.

v6.0.0
======
Remove ``Counter.GetCount``.
Remove ``flatten`` and ``iflatten``.

Log message:
*: bump PKGREVISION for egg.mk users

They now have a tool dependency on py-setuptools instead of a DEPENDS

Log message:
archivers: Replace RMD160 checksums with BLAKE2s checksums

All checksums have been double-checked against existing RMD160 and
SHA512 hashes

Could not be committed due to merge conflict:
devel/py-traitlets/distinfo

The following distfiles were unfetchable (note: some may be only fetched
conditionally):

./devel/pvs/distinfo pvs-3.2-solaris.tgz
./devel/eclipse/distinfo eclipse-sourceBuild-srcIncluded-3.0.1.zip

Log message:
devel: Remove SHA1 hashes for distfiles

Log message:
py-jaraco.itertools: only for python >= 3.6