[gtk] Update to pull in commit a2149a671aeff4200f3a72a350e503366ce99da8
[gtk] Update to pull in commit a2149a671aeff4200f3a72a350e503366ce99da8

This fixes Quartz input to better support Chinese characters.

BansheeMediaPlayer/bockbuild,BansheeMediaPlayer/bockbuild,BansheeMediaPlayer/bockbuild,mono/bockbuild,mono/bockbuild