Separate archive classes from utilities module

This is the start of the archive reworking to address Issue #86.

In this commit the Archive class hierarchy is separated from the
generic code in the utilities module and moved into its own
'archive' module. This is taken from the changes committed to
Jesse's directory_archive branch.

The next step is to decide how we will handle the problems
discovered with the in-line tarfile generation (and similar
problems affecting Zip files) and whether to revert to building
an in-filesystem tree (as Jesse's current branch does) or whether
to fix the problems with in-lining post-processing hooks.

0 files changed, 0 insertions, 0 deletions