join emitter threads after stop. fixes #252
join emitter threads after stop. fixes #252

teleyinex/watchdog,ymero/watchdog,mconstantin/watchdog,mconstantin/watchdog,mconstantin/watchdog,glorizen/watchdog,ymero/watchdog,teleyinex/watchdog,glorizen/watchdog,gorakhargosh/watchdog,glorizen/watchdog,teleyinex/watchdog,gorakhargosh/watchdog,ymero/watchdog