MAINT: Peg .travis.yml packages to specific versions in line with requirements.txt.
MAINT: Peg .travis.yml packages to specific versions in line with requirements.txt.

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