[Differential] [Updated] D2562: Use KDE_INSTALL_DATADIR instead of hard-coding CMAKE_INSTALL_PREFIX

[heikobecker (Heiko Becker)]

heikobecker added a reviewer: Plasma.

REPOSITORY
  rPLASMAINTEGRATION Integration for Qt applications in Plasma

REVISION DETAIL
  https://phabricator.kde.org/D2562

EMAIL PREFERENCES
  https://phabricator.kde.org/settings/panel/emailpreferences/

To: heikobecker, #plasma
Cc: plasma-devel, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas