Apt-mirror

* Add limit_rate to example mirror.list (fixes 72)
* Fix use of uninitialized value $config{"options"} warning (fixes 68,
Debian bug 851979, 859601)
* Fix warning on repository without md5sum (fixes 66)
* Write SHA1 and SHA256 in addition to MD5
* Also download xz-compressed Components-$arch.yml.xz (fixes 69)

* Add support for 'deb [arch=amd64] ...' format (fixes 32, 65)
* Create directories including their parents
* Add support for quoted variables with spaces (fixes 43, 67)

* Fix typo tranlation -> translation (fixes 35, Debian bug 756035,
Launchpad bug 1455522)
* if fork() fails, it returns undef and not a negative number (merge 37)
* Replace obsolete dpkg option '--print-installation-architecture'
by '--print-architecture' (Debian bug 834106)
* Add support for https_proxy (fixes 60)
* Download DEP-11 files in component/dep11 directories (fixes 56,
Launchpad bug 1550852)
* Support non-existing .gz index files (fixes 30, Debian bug 819974)
* Just test that config file is readable (Debian bug 824493)

* Fix find-translation-files bug.
* Fix skel (indexes) updates in a hardlinked mirror
* Added proxy support
* Also mirror xz compressed files (fixes 25).

* Removed restrictions when parsing deb-$arch (Launchpad bug 913837)
new arch's no longer need to be manually added
via an apt-mirror source change.
* Code cleaned up with perltidy and a .perltidyrc added
* Changed to warn() instead of die() when sources go missing
so mirroring of other sources continues.
* Download all provided translation files instead of trying to download
translation files based on a hard-coded language list. (Debian bug 725762)
* Fix typos (e.g. Debian bug 736904 and Launchpad bug 1211097).
* Mirror Contents-*.gz for each component. (Debian bug 647301)
* Mirror InRelease files (fixes 3).

* Added support for downloading of i18n files.
* Fix regex problem: arm overrides armhf. Thanks to hawken.
* Add support for HTTPS with basic HTTP authentication. Thanks to Pali
* Improve lock file handling to avoid false "apt-mirror is already running"
messages. Thanks to Ivan Borzenkov <ivan1986list.ru>
* Create directories after config is parsed.
Thanks to Rob Verduijn
* Support armhf, kfreebsd-* and s390x arch. Thanks Benjamin Drung
* Fix braindead build environments. Thanks Jeremy T. Bouse
* Add a shebang line to clean.sh. Thanks Benjamin Drung
* debian/postrm: Clean-up auto-generated files on purge. Thanks
Jeremy T. Bouse