Hints for freeorion in main

Hints

• asv-url-not-secure
  :19 - http://www.freeorion.org/index.php/Donations
  Consider using a secure (HTTPS) URL for this web link.
• asv-url-not-secure
  :20 - http://www.freeorion.org/index.php/FAQ
  Consider using a secure (HTTPS) URL for this web link.
• asv-url-not-secure
  :21 - http://www.freeorion.org/forum/viewforum.php?f=25
  Consider using a secure (HTTPS) URL for this web link.
• asv-url-not-secure
  :22 - http://www.freeorion.org
  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/