Hints for gnome-screenshot in main

Hints

• asv-url-not-secure
  <code>org.gnome.Screenshot.metainfo.xml:195</code> - <em>http://www.gnome.org/friends/</em><br/>Consider using a secure (HTTPS) URL for this web link.
• asv-nonstandard-gnome-extension
  <code>org.gnome.Screenshot.metainfo.xml:204</code> - <em>kudos</em><br/>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-description-first-word-not-capitalized
  <code>org.gnome.Screenshot.metainfo.xml:210</code> - <em></em><br/>The description line does not start with a capitalized word, project name or number.
• asv-description-first-word-not-capitalized
  <code>org.gnome.Screenshot.metainfo.xml:217</code> - <em></em><br/>The description line does not start with a capitalized word, project name or number.
• asv-developer-info-missing
  <code>org.gnome.Screenshot.metainfo.xml</code> - <em></em><br/>This component contains no `developer` element with information about its author.