Changes: SoundSettingsApplet: further (thread+memory) leak fixes...
Changes: SoundSettingsApplet: further (thread+memory) leak fixes...

nemomobile-graveyard/meegotouch-controlpanelapplets,deztructor/meegotouch-controlpanelapplets,nemomobile-graveyard/meegotouch-controlpanelapplets,deztructor/meegotouch-controlpanelapplets,nemomobile-graveyard/meegotouch-controlpanelapplets,deztructor/meegotouch-controlpanelapplets