Log Message:
Changes 3.4.3:
* GtkIconView:
 - The sizing and layout has been rewritten
* Bug fixes:
 478344 GtkTreeRowReference falsely said to auto-subscribe...
 587873 Documentation should explain MessageDialogs don't ...
 663072 GtkSelectionData is incorrectly documented
 670449 Splash screen stays
 672947 GtkEntryCompletion sizing/position fixes
 673237 window: Remove needless call to ensure_state_flag_...
 674192 out-of-tree build failure: demos/widget-factory/wi...
 674549 widget receives leave event when button released
 675421 GtkFileChooser should set its role
 675501 gtkquartz.h is not the gtk+-3.5.2.tar.xz archive
* Translation updates:
 Dutch
 Italian