Patool

* Print help when unknown options are given.
* Print error when archive files do not exist.
* Added installation instructions in doc/install.txt
* Added support for the pigz program handling GZIP archives.

* Handle CRX (.crx) files as ZIP archives. They have garbage at
the beginning of the file, but some unzip programs can cope with
that.
* The xz program supports listing of XZ archives. Adjust the
configuration accordingly.

* Fix command argument order when extracting cpio archives.
* Added correct cpio MIME type on Debian systems.
* Added support for the clzip and pdlzip programs who are both capable
of handling LZIP (.lz) archives.
* Added support for the orange program which is capable of extracting
CAB (.cab) archives.
* Added support for DMS (.dms) files with the xdms program.
* Support ZIP (.zip) file creation with the 7z and 7za programs.
* Improved MIME type detection for compressed TAR archives.
* Fix needed archive programs for several test cases, including
test_repack and test_mime.

* Show commands that are run.
* Fix rar extraction unpack directory.
* Fix ZIP mimedb detection on Windows systems.

* Added support for the standalone 7za program.

* Correct shell quoting of commandline arguments. Now files with
spaces or other special characters are handled correctly.
* Use correct error routine on rmtree() errors. The previous
one did not have the correct number of arguments.