Hints for xinput-calibrator in main

Hints

• asv-url-not-secure
  :17 - http://www.freedesktop.org/wiki/Software/xinput_calibrator/
  Consider using a secure (HTTPS) URL for this web link.
• asv-content-rating-missing
  -
  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/