gtk2 security and bug fix update

2.10.4-29 - Improve patch to parse CUPS user lpoptions file to avoid crashes on s390 and ia64 Resolves: 603809 2.10.4-28 - Fix the filechooser not opening selected file when location entry is empty Resolves: 518483 2.10.4-27 - Fix integer overflow in GdkPixbuf's XBM image file format loader...