…as removed.

…enu shortcuts.

* Add link to nobuyo/medy

…arallel-mirrors.

* Add svnpenn/sage

* Add tmshn/cyg-fast
* Modify digitallamb/apt-cyg
* Add balanx/apt-cyg
* Add langlichuan123/apt-cyg
* Add Milly/apt-cyg
* Add 10sr/pac-cyg
* Modify nobuyo/medy
* Modify svnpenn/sage

* Add description about `update-setup` and `setup` subcommand.

* Fix: mismatching of double quotations.

* Add pi0/cyg

* add current problem at 2016-02-11 with the ALC (maybe).

* "guest::" is not "%USERDOMAIN\None" but "%USERDOMAIN%\なし" in Win10JP.
* "*S-1-3-1" is "CREATOR GROUP", but "%USERDOMAIN%None" will be also changed.

Warning: /etc/setup/installed.db is not version 2. The first line is below:
INSTALLED.DB 3

See also [pull request #16](#16).
Thanks to laris for your pull request.
This change related to below patch of cygwin-setup:
* 2016-08-02: [Track if a package was installed by user, or as a dependency](https://sourceware.org/git/gitweb.cgi?p=cygwin-setup.git;a=commit;f=package_db.cc;h=f6d6c600edffdb83a57ed13384e38a504fdc366b)

Make packageof cache to "/tmp/.apt-cyg-packageof.cache.gz" and use it.

Use the silver searcher at `packageof` subcommand.

…ane folders and caches as apt-cyg on dist-upgrade

This patch is related to issue #93.

Bugfix: /etc/postinstall/*.dash are not executed.

Add `--benchmark-timeout` option.

* list-desired-packages
* list-installed-packages
* list-required-package
* list-overages-and-shortages-of-packages
* list-orphaned-packages
* list-lacked-packages

- A plain setup.ini is always downloaded even though
  it is successful to download one of compressed versions.
- Arguments for files_restore() is not aligned with
  files_backup() and files_backup_clean().

- Add --mirror-index|-M option.
- Add fd tweaks to findworkspace() and its caller
  for error handling for the above option.
- Add completion for the above option with new pathof argument.

Prefer gpg2 over gpg.

…nload'

- User OPT_VERBOSE_LEVEL instead of fd 3.
- Support multiple mirrors internally.
- Replace `pathof lastmirror` to `pathof mirros`.

This merge is related to pull-request #102.

when adding or removing packages.

* Add a check for iconv to the check for required commands
  at the start of execution.
* Remove the check for iconv before subcommand execution
  as it became unnecessary.

This related to issue #104.

This change is related to following issue:

* Cygwin public key hardcoded in apt-cyg expired #105.

Update sha512sum of `pubring.asc` because PGP key of cygwin has been updated.

Improve error messages by adding a suggestion to install `libiconv` if it is not installed.

Proxy was not split correctly, if 'wpad.dat' has comment or SOCKS.

* Ignore comment of '// ...'.
* Only adopt the first proxy with `PROXY ...'.
   * Ignore after the first proxy.

Improve `proxy-auto`.

Fixed checksum in pubring.asc

* Replace `>${verbosefor[x]}` with `>&100x`.

In GitHub Actions,
PowerShell connects Cygwin's fd 0, 1 and 2 to PowerShell's `pipe:[0]`.
This makes symbolic links like `/dev/fd/x -> pipe:[0]`.
But this makes `/dev/fd/x` inaccessible.
In this situation, `>&x` is still accessible.

Support to work in GitHub Actions for issue #116