Filter files that are not in version control from the gemspec
Filter files that are not in version control from the gemspec

Keeps unversioned files that I'm currently experimenting with from
accidentally getting released.

codydaig/hub,terry2000/hub,cpick/hub,hb9kns/hub,pcorpet/hub,ryo33/hub,nlutsenko/hub,isundaylee/hub,pcorpet/hub,Gusto/hub,cpick/hub,AndBicScadMedia/hub,haikyuu/hub,sideci-sample/sideci-sample-hub,RichardLitt/hub,aereal/hub,naru0504/hub,dongjoon-hyun/hub,tomasv/hub,sbp/hub,dongjoon-hyun/hub,hb9kns/hub,hopil/hub,dev4mobile/hub,pankona/hub,xantage/hub,aspiers/hub,jingweno/hub,github/hub,nmfzone/hub,rlugojr/hub,tomasv/hub,pwaller/hub,jingweno/hub,SanCoder-Q/hub,nlutsenko/hub,pankona/hub,codydaig/hub,whilp/hub,ASidlinskiy/hub,dev4mobile/hub,jpkrohling/hub,pwaller/hub,naru0504/hub,boris-rea/hub,whilp/hub,sferik/hub,sbp/hub,isundaylee/hub,pcorpet/hub,hopil/hub,jpkrohling/hub,sferik/hub,pwaller/hub,aspiers/hub,sbp/hub,whilp/hub,aereal/hub,haikyuu/hub,AndBicScadMedia/hub,haikyuu/hub,adjohnson916/hub,cpick/hub,jpkrohling/hub,github/hub,SanCoder-Q/hub,codydaig/hub,Gusto/hub,ZenPayroll/hub,pankona/hub,naru0504/hub,ASidlinskiy/hub,elancom/hub,SanCoder-Q/hub,isundaylee/hub,RichardLitt/hub,ASidlinskiy/hub,hb9kns/hub,dongjoon-hyun/hub,terry2000/hub,elancom/hub,nmfzone/hub,tomasv/hub,aereal/hub,nlutsenko/hub,rlugojr/hub,RichardLitt/hub,sideci-sample/sideci-sample-hub,AndBicScadMedia/hub,terry2000/hub,boris-rea/hub,ryo33/hub,dev4mobile/hub,aspiers/hub,ryo33/hub,xantage/hub,elancom/hub,github/hub,nmfzone/hub,jingweno/hub,hopil/hub,boris-rea/hub,adjohnson916/hub,adjohnson916/hub,github/hub,rlugojr/hub,ZenPayroll/hub,xantage/hub