Replace MacroLogFeature with FeatureSummary

Produces better output and is shipped with CMake.
Use GNUInstallDirs instead of HawaiiInstallDirs

We are no longer depending on Vibe so HawaiiInstallDirs is not
available.
Require at least Qt 5.1.0

Qt 5.1.0 or better is required because we need QtQuick Controls.