Imposed conventional perl coding style.
Use Carp.  Deprecate DEBUG() backwards compatibly.  Introduce error().
Swiped tests from Archive::Ar::Libarchive.
Support filehandle objects.  Added some additional methods.
More new methods.  Implemented gnu and bsd formats.
First pass at test script revamp.  Imposed a consistent style.  Removed dups.
Updated pod doc.
More test coverage.  More pod fixes.
More readable pod.  A few test tweaks.
Added travis config.
Fixed compat debug option handling.
Added a README.
documentation for chmod and chown
windows compat
Ignore negative uid or gid values in chown.