Fedora has switched to Weblate for translations:
https://fedoraproject.org/wiki/L10N/Translate_on_Weblate
* Remove zanata.xml
* Adjust CONTRIBUTING and appdata links to point to Fedora's weblate
Signed-off-by: Cole Robinson <crobinso@redhat.com>
Starting from version 0.19.6, gettext has native capabilities to extract
from, and merge back translations in AppStream files.
Hence, use xgettext to extract messages, and msgfmt to create AppStream
files with translations; because of this, there no more need to prefix
with underscore the tags to be translated.
Update the gettext required version in INSTALL.md.
Reviewed-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Pino Toscano <ptoscano@redhat.com>