[Gtkradiant] [Bug 871] New: update to gtk2 2.2.4 on win32

[gtkradiant@zerowing.idsoftware.com]

http://zerowing.idsoftware.com/bugzilla/show_bug.cgi?id=871

           Summary: update to gtk2 2.2.4 on win32
           Product: GtkRadiant
           Version: 1.3
          Platform: All
        OS/Version: other
            Status: NEW
          Severity: normal
          Priority: P2
         Component: editor
        AssignedTo: ttimo@idsoftware.com
        ReportedBy: ttimo@idsoftware.com


Several shortcuts are broken. Namely Ctrl + \ to toggle cubic clipping, and - /
+ to move selected brushes. Likely related to Gtk2, need to update to new
version ( and update IS setup accordingly ).