Be more active about unref'ing speakers so the gnome-speech driver will exit.
Be more active about unref'ing speakers so the gnome-speech
driver will exit.

chrys87/orca-beep,GNOME/orca,h4ck3rm1k3/orca-sonar,pvagner/orca,GNOME/orca,pvagner/orca,chrys87/orca-beep,chrys87/orca-beep,GNOME/orca,GNOME/orca,chrys87/orca-beep,pvagner/orca,h4ck3rm1k3/orca-sonar,pvagner/orca,h4ck3rm1k3/orca-sonar