[AppStream] AppStream 0.14.4 released!

[Matthias Klumpp]

Hi!
This is primarily a bugfix release, which addresses some of the issues
that came up in the pasts months, and also has some general code
quality improvements.
Thanks to all code contributors and the awesome translators who keep
AppStream localized!

Tarballs available here:
https://www.freedesktop.org/software/appstream/releases/
Cheers,
    Matthias

Version 0.14.4
~~~~~~~~~~~~~~
Released: 2021-06-22

Features:
 * qt: Expose setter and getter for pool cache location
 * utils: Use GLib's gstring_replace if available
 * its: Allow to mark release descriptions as non-translatable
 * compose: Point people at the specification if metadata license is invalid

Specification:
 * docs: Clarify which metadata licenses are permitted
 * docs: Fix a typo on the icon cache page
 * spec: Add a paragraph about which license to put in <project_license>
 * Add documentation for YAML release type and urgency
 * Add documentation for YAML provides

Bugfixes:
 * component: Don't strip ";" from keywords before translating them
 * utils: Don't strip modifiers when stripping encoding
 * compose: Check optipng is there before we use it
 * Improve text line wrapping, especially if many newlines are present
 * Make word-wrap function unicode-aware
 * Make license_is_metadata_license parse more complex expressions
 * Improve cache refresh code, don't flag cache as updated if update failed
 * Use system cache even if we had to drop some invalid metadata
 * Assign more string class members safely
 * Fix flashed firmware generating incorrect XML
 * Fix YAML having wrong names for the firmware data

Contributors:
 Aleix Pol, Iain Lane, Philip Withnall, Robert Ancell, Matthias Klumpp