Moves Travis gfortran install to "before" step so that it has root.
Moves Travis gfortran install to "before" step so that it has root.

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