D26154: Port qrand deprecated method to QRandomGenerator

[Laurent Montel]

mlaurent added a reviewer: dfaure.

REPOSITORY
  R1048 Grantlee

REVISION DETAIL
  https://phabricator.kde.org/D26154

To: mlaurent, dfaure
Cc: kde-frameworks-devel, LeGast00n, GB_2, michaelh, ngraham, bruns