Log Message:
Update gtk2 to 2.24.29

Overview of Changes from GTK+ 2.24.28 to 2.24.29
================================================

* OS X:
 - Partial aspect ratio support

* Bug fixes:
 345345 PrintOperation::paginate is not emitted for class handler
 745127 Changing order of file in "Places" crashes the application
 749507 gtk-2.0.m4 fails to detect a prefixed pkg-config
 752638 notebook tab dragging doesn't work on Quartz (patches...
 753644 Switching from Multipress input method to None immedi...
 753691 make install -j2 fails when building for MinGW
 753992 im-quartz discard_preedit segmentation fault
 754046 annotate gtk_color_button_get_color

* Translation updates:
 Occitan