Upgrades numpy package to latest. 1.6.1 -> 1.6.2
Upgrades numpy package to latest. 1.6.1 -> 1.6.2

ronalcc/zipline,AlirezaShahabi/zipline,sketchytechky/zipline,dmitriz/zipline,quantopian/zipline,DVegaCapital/zipline,kmather73/zipline,DVegaCapital/zipline,euri10/zipline,Scapogo/zipline,erikness/AlephOne,YuepengGuo/zipline,zhoulingjun/zipline,nborggren/zipline,otmaneJai/Zipline,ronalcc/zipline,florentchandelier/zipline,joequant/zipline,cmorgan/zipline,alphaBenj/zipline,aajtodd/zipline,semio/zipline,chrjxj/zipline,florentchandelier/zipline,gwulfs/zipline,chrjxj/zipline,zhoulingjun/zipline,quantopian/zipline,magne-max/zipline-ja,bartosh/zipline,cmorgan/zipline,StratsOn/zipline,jimgoo/zipline-fork,alphaBenj/zipline,stkubr/zipline,MonoCloud/zipline,nborggren/zipline,humdings/zipline,keir-rex/zipline,wubr2000/zipline,Scapogo/zipline,kmather73/zipline,enigmampc/catalyst,StratsOn/zipline,otmaneJai/Zipline,dmitriz/zipline,joequant/zipline,aajtodd/zipline,enigmampc/catalyst,grundgruen/zipline,MonoCloud/zipline,euri10/zipline,morrisonwudi/zipline,CarterBain/AlephNull,jordancheah/zipline,dkushner/zipline,CDSFinance/zipline,jimgoo/zipline-fork,ChinaQuants/zipline,humdings/zipline,wilsonkichoi/zipline,wilsonkichoi/zipline,gwulfs/zipline,ChinaQuants/zipline,YuepengGuo/zipline,CDSFinance/zipline,mattcaldwell/zipline,dhruvparamhans/zipline,keir-rex/zipline,umuzungu/zipline,semio/zipline,morrisonwudi/zipline,michaeljohnbennett/zipline,sketchytechky/zipline,davidastephens/zipline,umuzungu/zipline,iamkingmaker/zipline,davidastephens/zipline,jordancheah/zipline,erikness/AlephOne,mattcaldwell/zipline,grundgruen/zipline,magne-max/zipline-ja,dkushner/zipline,dhruvparamhans/zipline,AlirezaShahabi/zipline,iamkingmaker/zipline,michaeljohnbennett/zipline,bartosh/zipline,stkubr/zipline,wubr2000/zipline,CarterBain/AlephNull