python: simplify build, some fixups
* lang/python/gpg/version.py.in: Rename to lang/python/version.py.in. configure.ac: Generate version.py.in in lang/python. * lang/python/MANIFEST.in: Include version.py explicitly. * lang/python/gpg: Rename to 'src'. * lang/python/Makefile.am: Do not copy source files, do not use absolute directories, support lib64 in uninstall, clean also dist directory, use symlink for gpg src. * lang/python/setup.py.in: Use builddir, copy sources into builddir, copy version.py into module.
Simplify build to symlink the gpg sources into builddir instead of
copying. This requires handling of version.py as generated file.
In addition apply some cleanups: Drop the absolution pathes, clean the
dist directory as well, support lib64 for sitelib at uninstall.
- Signed-off-by: Alon Bar-Lev <alon.barlev@gmail.com>