D26791: prefer the new kcm plugins to the old

[Marco Martin]

mart marked an inline comment as done.

REPOSITORY
  R295 KCMUtils

REVISION DETAIL
  https://phabricator.kde.org/D26791

To: mart, #plasma, sitter, davidedmundson
Cc: davidedmundson, kde-frameworks-devel, LeGast00n, GB_2, michaelh, ngraham, 
bruns