Update to 2.16.6:
* Bugs fixed:
161489 Make left/right arrows change focus between bookmarks...
592883 Spin cell rendererer problem with double click
478519 GtkTooltip segfaults on NULL gdk-display-current-tooltip.
592003 Shift+click should always modify selection
589195 gtktreeview.c warning
588199 GtkTreeView rendering glitch while using a default sort...
526149 GtkCellRendererAccel editing conflicts with mnemonics
592901 Crash in JPEG pixbuf loader instead of error
592461 preserve errno and use g_strerror
589745 Apply message in GtkAssistant
588943 set correct selection before emitting cursor-changed...
592606 Activate the default button in a respose-request callback
591526 Accelerator keys with <super> modifier also triggered...
588958 Typo in startup-id window property
580511 gdk_x11_atom_to_xatom_for_display translates GDK_NONE...
564695 Pressing enter key in print to file "Name" box does not print
528283 Problems when using PageUp & PageDown to navigate...
534462 Focus issues in file chooser
543310 set_enable_tree_lines doesn't work when a cellrenderer...

* Translation updates:
Brazilian Portuguese
Catalan (Valencian)
Galician

(wiz)