BUG: Fixes a bug that caused `NDaysBeforeLastTradingDayOfMonth` to not fire on the last day of december.
BUG: Fixes a bug that caused `NDaysBeforeLastTradingDayOfMonth` to not
fire on the last day of december.

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