[gtk: 5/5] Merge branch 'matthiasc/for-master' into 'master'

[Matthias Clasen <matthiasc src gnome org>]

commit 8dfbef5e6f910524667e09e8f92bf2569222a0ad
Merge: 0b9a3fc160 cc878160bd
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Jun 1 11:28:28 2020 +0000

    Merge branch 'matthiasc/for-master' into 'master'
    
    columnview: Add column reordering
    
    See merge request GNOME/gtk!2005

 demos/gtk-demo/listview_settings.c   | 21 +++++++++++++++
 demos/gtk-demo/listview_settings.ui  | 52 ++++++++++++++++++++++++++++++++++++
 demos/gtk-demo/sliding_puzzle.c      | 13 ++++++---
 docs/reference/gtk/gtk4-sections.txt |  1 +
 gtk/gtkcolumnview.c                  | 50 ++++++++++++++++++++++++++++++++++
 gtk/gtkcolumnview.h                  |  4 +++
 6 files changed, 138 insertions(+), 3 deletions(-)
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