* 9490: gnome: safer, clearer string equality testing

gnome/src/accountlist.c

gnome/src/accountlist.h

gnome/src/actions.c

gnome/src/callable_obj.c

gnome/src/conference_obj.c

gnome/src/config/accountconfigdialog.c

gnome/src/config/accountlistconfigdialog.c

gnome/src/config/addressbook-config.c

gnome/src/config/assistant.c

gnome/src/config/audioconf.c

gnome/src/config/hooks-config.c

gnome/src/config/tlsadvanceddialog.c

gnome/src/config/zrtpadvanceddialog.c

gnome/src/contacts/calltab.c

gnome/src/contacts/calltree.c

gnome/src/dbus/dbus.c

gnome/src/mainwindow.c

gnome/src/sflnotify.c

gnome/src/str_utils.c

gnome/src/str_utils.h