Merge pull request #1110 from pbiering/url-fix-fedora

Squashed commit of the following:

commit 9f1a11c832e1e5fd552f193bd8cd9614a738cb85
Author: Peter Bieringer <pb@bieringer.de>
Date:   Sun Sep 27 16:56:35 2020 +0200

    url fix for Fedora

commit 240af9803fbd3f1b6c5920d27516cf2a5d370f58
Merge: 1e55a31 d48bacc
Author: Peter Bieringer <pb@bieringer.de>
Date:   Sun Sep 27 16:49:49 2020 +0200

    Merge remote-tracking branch 'upstream/master'

commit 1e55a314d5700d2851e19988cda8c651382c99b5
Merge: d61f4e7 d31eaf7
Author: Peter Bieringer <pb@bieringer.de>
Date:   Sat Sep 26 10:14:53 2020 +0200

    Merge remote-tracking branch 'upstream/master'

commit d61f4e7b819ee68dbcb2b740500a314c3e356e2b
Author: Unrud <unrud@outlook.com>
Date:   Mon Apr 30 00:18:36 2018 +0200

    Auth: Introduce login(login, password) method

    This deprecates map_login_to_user, is_authenticated and is_authenticated2

commit 7ecd7343baf7c7b5f10dc5a7de3847c07aa092f5
Author: Unrud <unrud@openaliasbox.org>
Date:   Sun Jun 25 11:18:05 2017 +0200

    Empty commit for release of 2.1.0

DOCUMENTATION.md

@@ -1392,7 +1392,7 @@ Radicale has been packaged for:
   * [Debian](http://packages.debian.org/radicale) by Jonas Smedegaard
   * [Gentoo](https://packages.gentoo.org/packages/www-apps/radicale)
     by René Neumann, Maxim Koltsov and Manuel Rüger
-  * [Fedora](https://admin.fedoraproject.org/pkgdb/package/radicale/) by Jorti
+  * [Fedora/RHEL/CentOS](https://src.fedoraproject.org/rpms/radicale) by Jorti and Peter Bieringer
   * [Mageia](http://madb.mageia.org/package/show/application/0/name/radicale)
     by Jani Välimaa
   * [OpenBSD](http://openports.se/productivity/radicale) by Sergey Bronnikov,