D22910: Replace obsolete QSignalMapper and qSort with non-obsolete code

[Sebastian Gottfried]

gottfried accepted this revision.
gottfried added a comment.
This revision is now accepted and ready to land.


  Sorry for the long wait. I discovered a crash in the keyboard layout editor which I suspected to be related to you work, but it is not. Still, I wanted to figure this out first.

REPOSITORY
  R336 KTouch

BRANCH
  master

REVISION DETAIL
  https://phabricator.kde.org/D22910

To: yurchor, #kde_edu, gottfried
Cc: kde-edu, narvaez, apol
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