node: return an error during signup if email is taken
node: return an error during signup if email is taken

xxryan1234/satellizer,redwood-strategic/satellizer,SkydiverFL/satellizer,redwood-strategic/satellizer,gshireesh/satellizer,david300/satellizer,andyskw/satellizer,jayzeng/satellizer,burasu/satellizer,bartekmis/satellizer,hsr-ba-fs15-dat/satellizer,eduardomb/satellizer,xxryan1234/satellizer,peterkim-ijet/satellizer,gshireesh/satellizer,celrenheit/satellizer,redwood-strategic/satellizer,david300/satellizer,ABPFrameWorkGroup/satellizer,celrenheit/satellizer,suratpyari/satellizer,hsr-ba-fs15-dat/satellizer,jskrzypek/satellizer,manojpm/satellizer,rick4470/satellizer,18098924759/satellizer,NikolayGalkin/satellizer,johan--/satellizer,bnicart/satellizer,xxryan1234/satellizer,marfarma/satellizer,peterkim-ijet/satellizer,vebin/satellizer,redwood-strategic/satellizer,sahat/satellizer,amitport/satellizer,david300/satellizer,NikolayGalkin/satellizer,baratheraja/satellizer,xxryan1234/satellizer,eduardomb/satellizer,eduardomb/satellizer,eduardomb/satellizer,jskrzypek/satellizer,expertmaksud/satellizer,m-kostira/satellizer,david300/satellizer,jskrzypek/satellizer,jskrzypek/satellizer,peterkim-ijet/satellizer,hsr-ba-fs15-dat/satellizer,maciekrb/satellizer,david300/satellizer,NikolayGalkin/satellizer,romcyncynatus/satellizer,NikolayGalkin/satellizer,eduardomb/satellizer,eduardomb/satellizer,celrenheit/satellizer,gshireesh/satellizer,hsr-ba-fs15-dat/satellizer,zawmyolatt/satellizer,jskrzypek/satellizer,amitport/satellizer,xxryan1234/satellizer,david300/satellizer,maciekrb/satellizer,celrenheit/satellizer,gshireesh/satellizer,redwood-strategic/satellizer,dgoguerra/satellizer,elanperach/satellizer,eduardomb/satellizer,eduardomb/satellizer,NikolayGalkin/satellizer,peterkim-ijet/satellizer,redwood-strategic/satellizer,gshireesh/satellizer,amitport/satellizer,amitport/satellizer,redwood-strategic/satellizer,redwood-strategic/satellizer,thiagofesta/satellizer,shubham13jain/satellizer,david300/satellizer,gshireesh/satellizer,david300/satellizer,viniciusferreira/satellizer,xxryan1234/satellizer,jskrzypek/satellizer,IRlyDontKnow/satellizer,maciekrb/satellizer,amitport/satellizer,xxryan1234/satellizer,marceldiass/satellizer,hsr-ba-fs15-dat/satellizer,redwood-strategic/satellizer,jskrzypek/satellizer,maciekrb/satellizer,celrenheit/satellizer,gshireesh/satellizer,xscharlie/satellizer,hsr-ba-fs15-dat/satellizer,gshireesh/satellizer,NikolayGalkin/satellizer,johan--/satellizer,hsr-ba-fs15-dat/satellizer,NikolayGalkin/satellizer,peterkim-ijet/satellizer,gshireesh/satellizer,jianwang195823/satellizer,TheOneTheOnlyDavidBrown/satellizer,celrenheit/satellizer,david300/satellizer,maciekrb/satellizer,peterkim-ijet/satellizer,jskrzypek/satellizer,thandaanda/satellizer,peterkim-ijet/satellizer,xxryan1234/satellizer,ezzaouia/satellizer,NikolayGalkin/satellizer,memezilla/satellizer,peterkim-ijet/satellizer,maciekrb/satellizer,shikhardb/satellizer,jskrzypek/satellizer,maciekrb/satellizer,Manumental32/satellizer,romcyncynatus/satellizer,eduardomb/satellizer,hsr-ba-fs15-dat/satellizer,heinbez/satellizer,amitport/satellizer,maciekrb/satellizer,sahat/satellizer,AmreeshTyagi/satellizer,themifycloud/satellizer,jonbgallant/satellizer,xxryan1234/satellizer,celrenheit/satellizer,gregoriusxu/satellizer,celrenheit/satellizer,amitport/satellizer,raycoding/satellizer