Hints for quitcount in main

Hints

• asv-url-not-secure
  quitcount.appdata.xml:35 - http://quitcount.sourceforge.net/
  Consider using a secure (HTTPS) URL for this web link.
• asv-nonstandard-gnome-extension
  quitcount.appdata.xml:37 - kudos
  This tag is a GNOME-specific extension to AppStream and not part of the official specification. Do not expect it to work in all implementations and in all software centers.
• asv-screenshot-media-url-not-secure
  quitcount.appdata.xml:32 - http://quitcount.sourceforge.net/quitcount-config.png
  Consider using a secure (HTTPS) URL to reference this screenshot image or video.
• asv-screenshot-media-url-not-secure
  quitcount.appdata.xml:28 - http://quitcount.sourceforge.net/quitcount-stats.png
  Consider using a secure (HTTPS) URL to reference this screenshot image or video.
• asv-content-rating-missing
  quitcount.appdata.xml -
  This component has no `content_rating` tag to provide age rating information. You can generate the tag data online by answering a few questions at https://hughsie.github.io/oars/