Added
- New feature: list files in the format `package.name/relative/path.ext` in a
new `package_data` target configuration key to find the file (relative to the
named package) and copy it to the `<outdir>`.
- New feature: include `add_setup_py=True` in any `[target:XXX]` section to
produce a pip-installable Python package complete with an auto-generated
`setup.py`.
Fixed
- Post-build commands now run in series (i.e., the second command won't be run
until the first completes).