Log Message:
Update to 2.18.7:

Overview of Changes from GTK+ 2.18.6 to 2.18.7
==============================================

* Bugs fixed:
 600865 gnome-panel crashed with "BadPixmap (invalid Pixmap...
 606698 Misplaced declaration of gtk_print_job_set_status
 606009 weirdness with clipping in abiword - csw
 607770 Leak in GtkTreeView with HildonPannableArea
 603144 Suspected wrong builtin page size: Chinese PRC6 and PRC9...
 607687 f-spot crashes when using themes using the pixmap engine
 608807 Marks on GtkScale widgets can overlap
 607508 Cannot drag windows around in pager applet any more
 608615 DnD events sent to wrong window
 599511 gtk_selection_owner_set causes graphical corruption...
 607344 GtkCalendar: crash when using tooltips via glade
 608410 GOK types backwards in text entry fields
 591186 GTK Menu Bar is unreadable under Windows 7
 607061 GtkPlug socket window is sometimes incorrectly unref'd...
 608370 dnd drag-dest signal handlers don't get correctly dis...
 608162 gtktoolbutton doesn't create right proxy menu item...
 561816 Optimize gtk_paned_set_position notifications

* Translation updates:
 Brazilian Portuguese
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 Slovenian
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