Log Message:
gtk3+: update to 3.24.14.

Overview of Changes in GTK+ 3.24.14
===================================

* Fix the opaque region for windows on X11

* theme:
 - Fix flat buttons in backdrop
 - Make popovers look more similar to menus
 - Tweak checkbox & radiobutton appearance
 - Add general typography classes (heading, title-1, etc)

* language bindings:
 - Fix annotations for gtk_tree_model_sort_new_with_model

* switch: Fix touch support

* infobar: Make clickable for default action

* emojichooser:
 - respect a no-emoji input hint

* fontchooser:
 - Fix an oversight with hiding the size label

* filechooser:
 - Disable recursive search without a system indexer

* modelbutton:
 - Fix a11y support to reflect button state

* input:
 - Fix touchpad gesture center calculation

* x11:
 - Fix root window scaling
 - Support _GTK_WORKAREAS_Dn property

* wayland:
 - Support a terminal purpose in input methods
 - Fix preedit cursor positioning
 - Fix enabling/disabling of text inputs
 - Support simultaneous selection requests
 - Require Wayland 1.14.91

* OS X:
 - Fix fullscreen state
 - Fix an Inkscape crash at startup
 - Fix OpenGL extension detection

* Printing:
 - Fix a crash with Avahi

* Translation updates:
 Basque
 British English
 Catalan
 Finnish
 French
 Galician
 Japanese
 Kurdish Sorani
 Malay
 Russian
 Slovak
 Spanish
 Turkish