Hints for krusader in main

Hints

• metainfo-validation-hint
  Validation of the metainfo file yielded the following hint: Consider using a secure (HTTPS) URL for 'http://docs.kde.org/development/en/extragear-utils/krusader/index.html'
• metainfo-validation-hint
  Validation of the metainfo file yielded the following hint: First 'description/p' paragraph might be too short (< 80 characters).
• metainfo-validation-hint
  Validation of the metainfo file yielded the following hint: Consider using a secure (HTTPS) URL for 'http://kde.org/images/screenshots/krusader.png'
• metainfo-validation-hint
  Validation of the metainfo file yielded the following hint: Consider using a secure (HTTPS) URL for 'http://www.krusader.org/'