(COPYING will be updated in next commit) svn path=/trunk/; revision=43536
ui/gtk/gui_utils.c into ui/gtk/main_titlebar.c, and the declaration of one of them out of ui/ui_util.h into ui/gtk/main_titlebar.h, and rename them to clarify that they work on the window name and titlebar. svn path=/trunk/; revision=43041