Hints for abiword in main

Warnings

• ancient-metadata
  The AppStream metadata should be updated to follow a more recent version of the specification.
  Please consult the MetaInfo quickstart guides for more information.
• translations-not-found
  Unable to add languages information, even though a translation tag was present in the MetaInfo file. Please check that its value is set correctly, and all locale files are placed in the right directories (e.g. /usr/share/locale/*/LC_MESSAGES/ for Gettext .mo files).
• screenshot-download-error
  Error while downloading screenshot from 'https://www.abisource.com/screenshots/AbiWord-screenshot-302.png': Failed to download file: Failed to connect to www.abisource.com port 443: Connection refused
  This might be a temporary server issue, or the screenshot is no longer available.