Hints for guake in main

Warnings

• asv-cid-desktopapp-is-not-rdns
  :3 - guake.desktop
  The component ID is not a reverse domain-name. Please update the ID to avoid future issues and be compatible with all AppStream implementations. You may also consider to update the name of the accompanying .desktop file to follow the latest version of the Desktop-Entry specification and use a rDNS name for it as well. In any case, do not forget to mention the new desktop-entry in a <launchable/> tag for this component to keep the application launchable from software centers and the .desktop file data associated with the metainfo data.
• missing-launchable-desktop-file
  The MetaInfo file references a .desktop file with ID 'guake.desktop' in its launchable tag, but the file was not found in the same source tree. In order to be able to launch the software once it was installed, please place the MetaInfo file and its .desktop files in the same package.
• screenshot-download-error
  Error while downloading screenshot from 'http://guake-project.org/img/screenshot.png': URL was not found on the server.
  This might be a temporary server issue, or the screenshot is no longer available.
• screenshot-download-error
  Error while downloading screenshot from 'http://guake-project.org/img/screenshot2.jpg': URL was not found on the server.
  This might be a temporary server issue, or the screenshot is no longer available.