Log Message:
Update gtk3 to 3.14.1

Highlights from release notes:

* GtkMisc::xalign has been undeprecated for now, it is still needed

* GtkIconView
 - Always draw cell background
 - Fix handling of prelight items

* GtkWindow
 - Fix growing nautilus windows

* Theming:
 - Use sass functions more
 - Theme .app-notification instead of .app-notification.frame
 - Lots of button fine-tuning
 - Avoid double background rendering in tooltips
 - Much faster blur implementation for shadows
 - Support symbolic, recolorable pngs
 - Many improvements in details
 - Style .needs-attention in GtkStackSwitcher
 - Adwaita is much more complete
 - Shadows, reliefs and frames in GtkScrolledWindow, GtkViewport,
   GtkButton, GtkEntry, GtkFrame, etc are now translated to style
   classes and themed
 - Use client-side shadows for menus and tooltips
 - Include the Adwaita theme
 - The default theme is now Adwaita
 - Icon loading now respects limits specified in the icon theme,
   unless GTK_ICON_LOOKUP_FORCE_SIZE is set
 - Don't include image content in icon caches, to avoid huge caches
 - GtkSwitch gained a hover state
 - Use outlines to render focus rings
 - Use icons to render spinners, expanders and arrows
 - GtkIconTheme can force symbolic or regular
   icon variants
 - GtkIconTheme will automatically load rtl
   icon variants

* Inspector:
 - Show widget allocations
 - Show hidden windows
 - Fix initial state of dark switch
 - Show some widget states and buildable ids
 - Add GtkTreeSelection to object tree
 - Add an easy way to change the font
 - Can change hi-dpi scale on the fly
 - Can simulate touchscreen at runtime
 - Shows style properties
 - Ctrl-Shift-I selects the widget under the pointer
 - Property editors show property and settings bindings
 - Support saving custom CSS
 - Show GMenus and GActions
 - Show combobox menus and submenus
 - Lower the inspector window when picking
 - Misc. navigation improvements

* Show widget state and other misc. info

* Wayland:
 - Implement Drag-and-Drop
 - Use subsurfaces for entry completion popups
 - Use subsurfaces for tooltips
 - Support newer protocol versions
 - Fix repaint artifacts
 - Update xdg-shell
 - Always use CSD under Wayland
 - Avoid a crash on pointer-less systems
 - Context menus work now
 - Support GNOME classic mode
 - Update to the latest xdg-shell protocol
 - Updates for xdg_shell protocol changes
 - Touch support

* To align better with css, button and menuitem subclasses now use a
  :checked state to indicate their checkedness, instead of :active or
  :selected.

* Deprecations, removals:
 - GtkStatusIcon, GtkThemingEngine
 - GtkWindow no longer supports resize grips
 - builtin icons have been deprecated in favor of loading icons
   from resources
 - Style regions
 - Support for .icon files
 - gdk_window_flush, drawing outside of begin/end paint
 - GdkColor
 - GtkMisc
 - GtkArrow
 - focus-line-width style property
 - GtkNumerableIcon
 - GtkButton::x/yalign
 - gtk_widget_reparent
 - gtk_widget_region_intersect
 - gtk_container_set_reallocate_redraws

* GtkFileChooser
 - Fix editing of bookmarks
 - Use symbolic icons in the path bar
 - received some design improvements

* GtkTextView
 - Add a vfunc to allow subclasses to draw above/below text

* GtkImage
 - Support scale factor when loading from resources

* Windows:
 - Fix handling of input shapes
 - Support font scaling
 - Dialog theming fixes
 - Several crash fixes
 - Fix icon theme loading
 - *Many* theme improvements
 - Add popover theming
 - Enable introspection
 - Theme improvements

* CSS:
 - Selectors can now match state pseudo classes on
   all elements
 - Support outline-radius in CSS
 - Implement 'unset' and 'all'
 - Support -gtk-icontheme
 - Support -gtk-icon-source
 - Add -gtk-icon-transform, supporting the 2D
   parts of CSS transforms
 - Support -gtk-icon-style

* GtkListBox:
 - Rows now have a selectable property and will be
   styled accordingly
 - GtkListBox can now do multi-selection

* GtkApplication:
 - gtk_application_prefers_app_menu is a new function to facility
   adapting UIs to platform expectations
 - GtkApplication now tries to load menus from resources in the
   resource path that is defined by GApplication
 - GtkApplication set up a resource path for loading icons as well

* GtkScrolledWindow:
 - Scrolling in response to user input (scrollbar clicks, keynav)
   is now animated
 - The displacement animation has been replaced edge gradients

* GtkScaleButton:
 - The orientation is now changed on the fly to make the popup
   fit into small windows

* GtkEntry:
 - Activity mode progress is now smooth

* Client-side decorations
 - The default button layout includes minimize and maximize again
 - Dialogs are no longer using client-side decorations when
   use-header-bar is unset

* GTK+ now ships a simple icon theme browser, gtk3-icon-browser

* Gestures:
 - Convert most widgets to use gestures internally

* Widget factory:
 - Improve coverage of GTK+ features

* Interactive debugging support. The GtkInspector
  window can be triggered with the Ctrl-Shift-I
  or Ctrl-Shift-D keyboard shortcuts, or via the
  GTK_DEBUG environment variable.

* Gesture support has landed. New classes include
  GtkGestureLongPress, GtkGestureMultiPress, GtkGestureSwipe,
  GtkGesturePan, GtkGestureRotate, GtkGestureZoom. Many GTK+
  widgets already use gestures internally. Gestures also
  show up in GtkInspector.
  The gesture-related APIs are still subject to change.

* GTK+ widgets can now draw outside their allocation,
  by setting a clip with gtk_widget_set_clip().
  The clip-related APIs are still subject to change.

* GtkStack has added a few more transition types

* GtkProgressBar is now narrower

* GtkSwitch has a way to delay state changes

* GtkMenuButton is using a popover for menu models by default

* GtkPopover can have horizontal sections

* GtkBuilder
 - Supports property binding
 - Supports dialog actions

* Client-side decorations
 - The requirement for _GTK_FRAME_EXTENTS has been dropped
   to avoid 'double headers' with most window managers
 - Drawing of DND highlights around the entire window works

* Broadway backend
 - Now builds on OpenBSD

* Many bug fixes

* Translation updates

For full details see:

https://git.gnome.org/browse/gtk+/tree/NEWS?id=3.14.1