Remove duplicate games from a database

[maximmasiutin]

I have imported several games from PGN files, but some games are imported twice or more times.

Please consider a feature (a toolbar button "Deduplicate" or "Utilities" -> Deduplicate) to remove duplicate games, i.e. entries which have all attributes equal.

Or should I implement this option and create a pull request?

[lukasmonk]

Done

[maximmasiutin]

Thank you very much for the prompt action! That feature works great, I have used it in the latest version that you released!