Cfv

* WARNING: This is a development snapshot, not a stable release.

* Drop support for Python 3.5.
* Python 3.6 is now the minimum supported version.
* Add support for Python 3.12 (Thanks to Louis Sautier).
* Add support for Python 3.13.
* Correctly close files in various situations.

* Tested platforms: Linux and FreeBSD. If there is interest in supporting more platforms (e.g. OSX and Windows), please get in contact with the project.
* Support for Python 3 (Thanks to Steven Xu for major contributions).
* Python 3.5 is now the minimum supported version.
* Dropped fchksum support, as it does not support Python 3.

* Now fully unicode aware. Work is done internally in unicode, only translating to encoded form on input/output.
* Added --encoding option.
* Specifying --encoding=raw will allow working with broken filenames. (But really, you should just fix them, if possible.)
* Torrent files now default to UTF-8 filename encoding, and specify the encoding field in the metainfo.
* The encoding of text checksum files that start with a Unicode BOM is auto detected.
* Python 2.3 is now the minimum supported version.
* Decode the torrent comment field too.
* Changed handling of -f: Now all options are checked before testing/creating the file. (Benjamin Hohl)
* Torrent file handling no longer requires BitTorrent client to be installed.
* Support for GNU coreutils sha224sum, sha256sum, sha384sum and sha512sum formats.
* New project home: https://github.com/cfv-project/cfv

* Fix python2.6 md5 and sha module deprecation warnings.

* Print help output to stdout under non-error conditions. (Requested by Simon Howard)
* Work around mmap file descriptor leak in Python 2.4.2.
* Support different module layout of BitTorrent 5.x.
* Fix "struct integer overflow masking is deprecated" warning. (Reported by jjacobs2)
* Add --private_torrent flag. (Requested by Anders Henke)
* Work around bug in Python (only manifests with 64-bit Python version >= 2.5) which causes checksums of files > 4GB to be incorrectly calculated (when using mmap, eg, when the progress meter is disabled or not shown.)