Summarized changelog:
- New function: axis_debug.
- estimated_widget_size: Change return type to double.
- ssw-sheet-axis.c: add check to out-of-sight processing.
- remove force_update callback to prevent stall.
- change key-press-event generation to avoid warnings.
- Add push/pop functions for cursor.
- SswSheetAxis: Take a reference to the adjustment.
- SheetBody: Use g_value_dup_object instead of g_value_get_object + g_object_ref.
- Use g_set_object instead of explicit ref, assign, unref.
- SswXpaned: Don't ref the window.
- SheetAxis: Don't unref adjustment if it is NULL.
- SheetSingle: Use g_set_object to assign the adjustments.
- Don't show the "Insert Emoji" menuitem in the entry's popup menu.
- Enter the editable's data when a button is pressed.
- Fix broken "editable" property.
- Fix broken interaction between visibility and split property.
- redraw when data is changed.
- Avoid compiler warning about signedness.