D19806: Allow selecting only supported audio files

[Aleix Pol Gonzalez]

apol added a comment.


  How do we know that's the only ones supported?

REPOSITORY
  R305 KNotifyConfig

REVISION DETAIL
  https://phabricator.kde.org/D19806

To: broulik, #frameworks, dfaure
Cc: apol, kde-frameworks-devel, michaelh, ngraham, bruns