Fix GtkBuilder bindtextdomain in ibus-setup.
Fix GtkBuilder bindtextdomain in ibus-setup.

The patch was provided by Akio Obata <obata at lins dot jp>

BUG=http://code.google.com/p/ibus/issues/detail?id=1453
TEST=Linux desktop

Review URL: https://codereview.appspot.com/6203045

j717273419/ibus,ueno/ibus,fujiwarat/ibus,j717273419/ibus,Keruspe/ibus,fujiwarat/ibus,ueno/ibus,fujiwarat/ibus,fujiwarat/ibus,ueno/ibus,ueno/ibus,ibus/ibus,ibus/ibus,Keruspe/ibus,j717273419/ibus,Keruspe/ibus,ibus/ibus,ibus/ibus,ueno/ibus,Keruspe/ibus,j717273419/ibus