Update metadata cache for upstream's eclass changes
[aaargh] Remove dependency on argparse with Python >2.6

Only required to workaround packages using upstream resolver :/

Package-Manager: portage-2.1.12.2
Manifest-Sign-Key: C0174749
[jnrowe-pypi.eclass] Update description to match mixed eclass usage
[jnrowe-github.eclass] Minor grammar fix
[pyhumod] Use $PYTHON_USEDEP, where possible

Package-Manager: portage-2.1.12.2
Manifest-Sign-Key: C0174749
[ontv] Use $PYTHON_USEDEP, where possible

Package-Manager: portage-2.1.12.2
Manifest-Sign-Key: C0174749
[mnemosyne] Use $PYTHON_USEDEP, where possible

Package-Manager: portage-2.1.12.2
Manifest-Sign-Key: C0174749
Merge branch 'feat/distutils-r1_usedeps'

* feat/distutils-r1_usedeps:
  [mnemosyne] Use $PYTHON_USEDEP, where possible
  [ontv] Use $PYTHON_USEDEP, where possible
  [pyhumod] Use $PYTHON_USEDEP, where possible