[flnews] Version 1.0.0 released

[Michael Bäuerle]

flnews 1.0.0
============

Important notes:
- The new configuration data format is not compatible with versions 0.x
(indicated by the major number bump)!
A script is provided to automatically convert existing configuration
data to the new format. Read "migration/README" for details.
- Because the location of the configuration has changed (see new XDG
module below), the configuration for versions 0.x is preserved.
- It is still possible to downgrade flnews to 0.x, the preserved old
configuration data is used again in this case.
- Now the release version contains 3 numbers "x.y.z"
Major (x) indicates compatibility with configuration data
Minor (y) is incremented for new features
Patch (z) is incremented for bug fixes

Bug fixes:
- GUI: After unsubscribing the last group, the article tree/list was not
cleared and the user can click on articles for which the associated
data no longer exists. Such operations will crash the program
(reported by Martin Schnitkemper).
- GUI: On macOS with system menu bar the status updates to menu entry
"Group->Sort by article number" work now (patch from Dennis Preiser).
The required method update() is not available with old FLTK 1.3
libraries, the option CFG_COCOA_SYS_MENUBAR now requires FLTK 1.4.
- GUI: Use FLTK default forground color for group subscription window
too. This should make the content readable with dark background
(reported by Christian Schumacher).
- GUI: If there are multiple signature separators ("-- ") present, now
the last one is used according to "Usenet Best Practice" draft 01
(reported by Marcel Logen).
- ENC: URI percent encoder for scheme <news> fixed: The characters
defined as <gen-delims> (RFC 3986 Section 2.2) are now encoded
(reported by Marcel Logen).

New features and improvements:
- XDG: Moved default configuration directory to location defined by XDG
Base Directory Specification 0.7 ("$XDG_CONFIG_HOME/$CFG_NAME").
Other modules now ask the XDG module for the configuration path.
- MAIN: The new command line option "-confprefix" can be used to
override the configuration directory (proposed by Helmut Waitzmann).
- MAIN: New command line option "-debug" to enable debug mode early.
- EXT: Support for external inews added.
- GUI: It is now possible to mark all articles in all groups as read
(menu entry "Group->Mark all groups as read").
Pathname can be specified with the new "inews" entry in configfile.
- GUI: New menu entry "Group->Mark subthread as read".
- GUI: If there is only one entity to display for a MIME multipart
message (e.g. the selected one with multipart/alternative), the
entity header is now displayed too.
- GUI: Modified question popup windows to handle pressing ESC key as
"No" or "Reject" respectively.
- GUI: Some entries moved from menu "Article" to "Group".
- TLS: Deprecated functions from OpenSSL 3 API are no longer used.

Tested to work with:
- FLTK 1.4 development snapshot
Allows the use of glyph substitution (rendering with multiple fonts)
if compiled with Pango.
- OpenSSL 3.0 Alpha 16
Allows negotiation of RFC 7919 FFDHE groups for TLS key exchange.

Known problems:
- Default awk on Debian GNU/Linux is not POSIX conformant enough
Using gawk works (can be installed with "apt install gawk").
Another option is to specify a POSIX conformant awk in the flnews
CONFIG file.

Full changelog, Sourcecode, Documentation, etc.:
<https://micha.freeshell.org/flnews/>
<https://www.ybtra.de/flnews-mirror/>
<http://www.southcity.de/flnews/>


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