Re-implementation of mktarball.sh as a more portable Python script; with a more descriptive name.
Re-implementation of mktarball.sh as a more portable Python script;
with a more descriptive name.

Allow creation of multiple archive formats with a single pass; useful
in this case since it uses a fresh export/checkout from CVS to ensure
that the tree is "clean" (no build turds, saved files, &c).  Use --all
to create all supported formats.

sk-/python2.7-type-annotator,sk-/python2.7-type-annotator,sk-/python2.7-type-annotator