Removed depth_first_traversal.hpp from btree.hpp.
Removed depth_first_traversal.hpp from btree.hpp.

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