Adds docs for set operations.
Adds docs for set operations.

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