Make sure ECM_MKSPECS_INSTALL_DIR is also passed
Add proper marker while passing ECM_MKSPECS_INSTALL_DIR
Fix silly mistake
Use KDE_INSTALL_USE_QT_SYS_PATHS to do the right thing automatically.
and drop useless calls.
Merge branch 'kf5' into kubuntu-kf5

Conflicts:
	datalib/kf5_flags