D22375: new class KBusyIndicatorWidget similar to QtQuick's BusyIndicator

[Christoph Feck]

cfeck accepted this revision.

REPOSITORY
  R236 KWidgetsAddons

BRANCH
  master

REVISION DETAIL
  https://phabricator.kde.org/D22375

To: sitter, cfeck, apol
Cc: ngraham, kossebau, broulik, kde-frameworks-devel, apol, LeGast00n, 
sbergeron, michaelh, bruns