Removes cvxopt from pip installs.
Removes cvxopt from pip installs.

It appears that cvxopt is uninstallable via pip in it's current state.

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