Torf-cli

- Bugfix: Allow all torf 3.*.* version, not just 3.0.0.

- Huge performance increase due to multithreading.
- Verify a torrent's content: torf -i content.torrent path/to/content
- Progress is now reported in two lines with more information.
- New option: --metainfo prints a JSON object of the torrent's metainfo.
- New option: --json prints a JSON object of the regular output.
- New option: --verbose shows file sizes in plain bytes, verifies file
content more thoroughly, etc.
- New option: --exclude-regex excludes files that match a regular expression.
- --exclude and --exclude-regex patterns are now matched against the complete
relative path within the torrent instead of individual path segments.
- Support for multiple tiers of announce URLs when creating torrents.
- Exit codes have changed and are now properly documented in the man page.
- Bugfix: --max-piece-size can now set piece sizes larger than 16 MiB.

- Fixed minor bug that caused trailing zeros to be removed from numbers, e.g.
"10 GiB" was displayed as "1 GiB"

- Use proper version number scheme.
- Fixed "--exclude requires PATH" error when editing a torrent with global
"exclude" options in the config file.
- New options: --source to add a "source" field to the torrent and --nosource
to remove it from an existing torrent.
- New option: --max-piece-size optionally limits the piece size.

- Support for default arguments and special profiles in ~/.config/torf/config
or any file specified by --config or -f.
- Use \e[0E instead of \e[1` to clear the line when showing progress.
(marcelpaulo)
- If output is not a TTY, "Progress ..." lines are not cleared but followed by
a newline character and the rest of the line is parsable like the other
output.
- Long or multiline torrent file comments are now properly indented.
- --exclude patterns are now matched against each directory/file name in a
path instead of just the file name.
- Torrent file and magnet link are now both created by default, and the
--magnet option was replaced by --nomagnet and --notorrent.
- In the output 'Magnet URI' was shortened to 'Magnet', 'Torrent File' was
shortened to 'Torrent' and 'Creation Date' was shortened to 'Created'.
- The default for --date was changed from 'today' to 'now'.

- Major rewrite with lots of tests that should fix the most obvious bugs
- The options --source and --nosource have been removed
- The option --nocreator has been added
- Output is now easier to parse when stdout is not a TTY (e.g. when piping to
grep, cut, awk, etc)