[AppStream] AppStream 0.14.6 released!

[Matthias Klumpp]

Hello!

A new AppStream release is out, containing a bunch of cleanups on the
specification, support for source locales, a few new features for
appstream-compose and appstreamcli's news-to-metainfo command, as well
as lots of bugfixes.
Also, the code is now tested continuously on Fedora on our CI as well.

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

See below for the full list of changes.
Cheers,
    Matthias

Version 0.14.6
~~~~~~~~~~~~~~
Released: 2021-10-08

Features:
 * validator: Allow slightly longer screenshot captions
 * news-to-metainfo: Recognize the "Miscellaneous" section
 * ascli: Add check-license command to test license for compatibility
 * Emit URLs to choosealicense.com for certain popular licenses
 * Add manually curated list of DFSG-free licenses
 * news-to-metainfo: Allow only marking the last entries as translatable
 * compose: Add support for image and video screenshot handling
 * news-to-metainfo: Parse hyphens as header separators as well
 * ci: Add Fedora to the CI environment
 * as-translation: Add a new source-locale property
 * compose: Support source locales for translations

Specification:
 * docs: Clarify screenshot image/video dimensions, quickstart recommendations
 * docs: Clarify image scaling, drop fixed-size image width recommendation
 * spec: Mention the already-supported scale attribute of <icon/>
 * spec: Add support for source locales

Bugfixes:
 * cli: Properly forward parameters to compose binary when invoked via ascli
 * compose: Don't follow symlinks when processing raw directories
 * xml: Make NULL value handling for RefString value readers consistent
 * news-to-metainfo: Stop parsing data if we have reached our entry limit
 * news-to-metainfo: Don't attempt to override existing error on parsing failure
 * compose: Extract screenshot image dimension data even if we're not
caching them
 * curl: Use less memory when downloading large files

Contributors:
 Neal Gompa, Philip Withnall, Matthias Klumpp

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