Added an assertion that we are not passing in null block ids into block_write.
Added an assertion that we are not passing in null block ids into block_write.

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