D18671: Fix unnecessary cmake warnings (Qt5_FOUND to FALSE), use QT_REQUIRED_VERSION

[Andreas Sturmlechner]

asturmlechner edited the summary of this revision.

REPOSITORY
  R181 Amarok

BRANCH
  master

REVISION DETAIL
  https://phabricator.kde.org/D18671

To: asturmlechner, #amarok, markey, heikobecker
Cc: heikobecker, amarok-devel