Update reactor_driver_t for new watchable_t interface.
Update reactor_driver_t for new watchable_t interface.

jfriedly/rethinkdb,greyhwndz/rethinkdb,alash3al/rethinkdb,Qinusty/rethinkdb,elkingtonmcb/rethinkdb,4talesa/rethinkdb,rrampage/rethinkdb,eliangidoni/rethinkdb,catroot/rethinkdb,AntouanK/rethinkdb,sbusso/rethinkdb,urandu/rethinkdb,4talesa/rethinkdb,Qinusty/rethinkdb,JackieXie168/rethinkdb,robertjpayne/rethinkdb,ajose01/rethinkdb,nviennot/rethinkdb,eliangidoni/rethinkdb,victorbriz/rethinkdb,eliangidoni/rethinkdb,JackieXie168/rethinkdb,AntouanK/rethinkdb,pap/rethinkdb,mquandalle/rethinkdb,bchavez/rethinkdb,AntouanK/rethinkdb,grandquista/rethinkdb,yakovenkodenis/rethinkdb,gavioto/rethinkdb,captainpete/rethinkdb,lenstr/rethinkdb,jesseditson/rethinkdb,losywee/rethinkdb,gdi2290/rethinkdb,Wilbeibi/rethinkdb,catroot/rethinkdb,pap/rethinkdb,AtnNn/rethinkdb,mcanthony/rethinkdb,alash3al/rethinkdb,ajose01/rethinkdb,AtnNn/rethinkdb,jfriedly/rethinkdb,lenstr/rethinkdb,wojons/rethinkdb,mcanthony/rethinkdb,marshall007/rethinkdb,tempbottle/rethinkdb,grandquista/rethinkdb,yakovenkodenis/rethinkdb,AntouanK/rethinkdb,ayumilong/rethinkdb,mbroadst/rethinkdb,yakovenkodenis/rethinkdb,yaolinz/rethinkdb,bpradipt/rethinkdb,AtnNn/rethinkdb,dparnell/rethinkdb,wojons/rethinkdb,losywee/rethinkdb,Wilbeibi/rethinkdb,yaolinz/rethinkdb,scripni/rethinkdb,RubenKelevra/rethinkdb,urandu/rethinkdb,elkingtonmcb/rethinkdb,KSanthanam/rethinkdb,elkingtonmcb/rethinkdb,captainpete/rethinkdb,niieani/rethinkdb,marshall007/rethinkdb,spblightadv/rethinkdb,wojons/rethinkdb,wujf/rethinkdb,captainpete/rethinkdb,captainpete/rethinkdb,sontek/rethinkdb,grandquista/rethinkdb,mcanthony/rethinkdb,sontek/rethinkdb,mbroadst/rethinkdb,matthaywardwebdesign/rethinkdb,mcanthony/rethinkdb,jfriedly/rethinkdb,pap/rethinkdb,spblightadv/rethinkdb,pap/rethinkdb,bpradipt/rethinkdb,AtnNn/rethinkdb,sebadiaz/rethinkdb,marshall007/rethinkdb,spblightadv/rethinkdb,tempbottle/rethinkdb,jfriedly/rethinkdb,jmptrader/rethinkdb,sebadiaz/rethinkdb,sbusso/rethinkdb,mquandalle/rethinkdb,wojons/rethinkdb,mcanthony/rethinkdb,gdi2290/rethinkdb,bchavez/rethinkdb,wkennington/rethinkdb,sbusso/rethinkdb,greyhwndz/rethinkdb,KSanthanam/rethinkdb,gdi2290/rethinkdb,robertjpayne/rethinkdb,ayumilong/rethinkdb,ajose01/rethinkdb,yaolinz/rethinkdb,JackieXie168/rethinkdb,niieani/rethinkdb,bpradipt/rethinkdb,lenstr/rethinkdb,mcanthony/rethinkdb,gavioto/rethinkdb,robertjpayne/rethinkdb,catroot/rethinkdb,wujf/rethinkdb,alash3al/rethinkdb,dparnell/rethinkdb,pap/rethinkdb,eliangidoni/rethinkdb,matthaywardwebdesign/rethinkdb,urandu/rethinkdb,mquandalle/rethinkdb,gdi2290/rethinkdb,rrampage/rethinkdb,scripni/rethinkdb,wujf/rethinkdb,AntouanK/rethinkdb,mquandalle/rethinkdb,RubenKelevra/rethinkdb,jesseditson/rethinkdb,jesseditson/rethinkdb,KSanthanam/rethinkdb,scripni/rethinkdb,robertjpayne/rethinkdb,mcanthony/rethinkdb,pap/rethinkdb,marshall007/rethinkdb,scripni/rethinkdb,nviennot/rethinkdb,bpradipt/rethinkdb,spblightadv/rethinkdb,grandquista/rethinkdb,RubenKelevra/rethinkdb,captainpete/rethinkdb,bchavez/rethinkdb,greyhwndz/rethinkdb,lenstr/rethinkdb,wkennington/rethinkdb,sbusso/rethinkdb,dparnell/rethinkdb,Wilbeibi/rethinkdb,bpradipt/rethinkdb,wojons/rethinkdb,jfriedly/rethinkdb,mbroadst/rethinkdb,tempbottle/rethinkdb,catroot/rethinkdb,victorbriz/rethinkdb,yaolinz/rethinkdb,losywee/rethinkdb,matthaywardwebdesign/rethinkdb,sebadiaz/rethinkdb,dparnell/rethinkdb,elkingtonmcb/rethinkdb,RubenKelevra/rethinkdb,sontek/rethinkdb,mquandalle/rethinkdb,wujf/rethinkdb,catroot/rethinkdb,captainpete/rethinkdb,4talesa/rethinkdb,urandu/rethinkdb,4talesa/rethinkdb,scripni/rethinkdb,KSanthanam/rethinkdb,AtnNn/rethinkdb,marshall007/rethinkdb,wkennington/rethinkdb,4talesa/rethinkdb,jfriedly/rethinkdb,tempbottle/rethinkdb,victorbriz/rethinkdb,sontek/rethinkdb,mcanthony/rethinkdb,wojons/rethinkdb,rrampage/rethinkdb,mquandalle/rethinkdb,Qinusty/rethinkdb,dparnell/rethinkdb,losywee/rethinkdb,bpradipt/rethinkdb,sebadiaz/rethinkdb,AntouanK/rethinkdb,elkingtonmcb/rethinkdb,grandquista/rethinkdb,greyhwndz/rethinkdb,ayumilong/rethinkdb,mbroadst/rethinkdb,tempbottle/rethinkdb,urandu/rethinkdb,bpradipt/rethinkdb,RubenKelevra/rethinkdb,bchavez/rethinkdb,scripni/rethinkdb,spblightadv/rethinkdb,yakovenkodenis/rethinkdb,robertjpayne/rethinkdb,sbusso/rethinkdb,ayumilong/rethinkdb,jmptrader/rethinkdb,wojons/rethinkdb,rrampage/rethinkdb,catroot/rethinkdb,4talesa/rethinkdb,eliangidoni/rethinkdb,elkingtonmcb/rethinkdb,wkennington/rethinkdb,Qinusty/rethinkdb,jesseditson/rethinkdb,jesseditson/rethinkdb,jmptrader/rethinkdb,mbroadst/rethinkdb,urandu/rethinkdb,RubenKelevra/rethinkdb,RubenKelevra/rethinkdb,ayumilong/rethinkdb,dparnell/rethinkdb,JackieXie168/rethinkdb,niieani/rethinkdb,alash3al/rethinkdb,ajose01/rethinkdb,alash3al/rethinkdb,rrampage/rethinkdb,gdi2290/rethinkdb,KSanthanam/rethinkdb,wujf/rethinkdb,yakovenkodenis/rethinkdb,gavioto/rethinkdb,alash3al/rethinkdb,robertjpayne/rethinkdb,bpradipt/rethinkdb,grandquista/rethinkdb,JackieXie168/rethinkdb,yaolinz/rethinkdb,victorbriz/rethinkdb,rrampage/rethinkdb,tempbottle/rethinkdb,victorbriz/rethinkdb,bchavez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