v2.0.1

• zip() and zip_append() are now soft-deprecated, please use
  zipr() and zipr_append() instead.

v2.0.0

• New zipr() and zipr_append(), they always store relative file names
  in the archive.

• New unzip() function for uncompressing zip archives.

• New zip_process() and unzip_process() functions to create or
  uncompress an archive in a background process.

• zip(), zipr(), zip_append() and zipr_append() all include
  directories in the archives, empty ones as well.

• zip(), zipr(), zip_append() and zipr_append() all add time stamps
  to the archive and zip_list() returns then in the timestamp column.

• zip(), zipr(), zip_append() and zipr_append() all add file
  and directory permissions to the archive on Unix systems, and
  zip_list() returns them in the permissions column.

• zip_list() now correctly reports the size of large files in the archive.

• Use miniz 2.0.8 internally.