Set default emails.
Set default emails.

Without this, the defaults get set to '' and then sentences on the site look weird because the emails are missing.

jorgeomarmh/configuration,joshhu/configuration,Stanford-Online/configuration,antoviaque/configuration,cecep-edu/configuration,pedrorib/istx,yrchen/configuration,chudaol/configuration,AlfiyaZi/configuration,leansoft/configuration,glengal/configuration,gsehub/configuration,B-MOOC/configuration,pedrorib/istx,openfun/configuration,LearnEra/LearnEra-Configuration,appsembler/configuration,pobrejuanito/configuration,bugcy013/edx_infra,armaan/edx-configuration,glengal/configuration,hmcmooc/ec2-edx-configuration,IONISx/edx-configuration,arbrandes/edx-configuration,vasyarv/configuration,negritobomb/edxplat,4eek/configuration,open-craft/configuration,arifsetiawan/configuration,alu042/configuration,EDUlib/configuration,B-MOOC/configuration,IndonesiaX/configuration,mitodl/configuration,4eek/configuration,joshhu/configuration,jp-bpl/configuration,louyihua/configuration,hastexo/edx-configuration-old,louyihua/configuration,nttks/configuration,kmoocdev/configuration,rue89-tech/configuration,Softmotions/configuration,negritobomb/edxplat,UXE/edx-configuration,hmcmooc/ec2-edx-configuration,antshin72/configuration,nunpa/configuration,gsehub/configuration,stvstnfrd/configuration,beacloudgenius/configuration,proversity-org/configuration,bugcy013/edx_infra,cecep-edu/configuration,lgfa29/configuration,michaelsteiner19/open-edx-configuration,AlfiyaZi/configuration,chudaol/configuration,knehez/configuration,AlfiyaZi/configuration,jorgeomarmh/configuration,nikolas/configuration,michaelsteiner19/open-edx-configuration,chenshuchuan/configuration,chenshuchuan/configuration,armaan/edx-configuration,arbrandes/edx-configuration,nttks/configuration,armaan/edx-configuration,yrchen/configuration,hastexo/edx-configuration-old,xiangjf/configuration,nttks/configuration,usernamenumber/configuration,marcore/configuration,kmoocdev/configuration,CredoReference/configuration,jp-bpl/configuration,fghaas/edx-configuration,hks-epod/configuration,knehez/configuration,marcore/configuration,pobrejuanito/configuration,nikolas/configuration,edx/configuration,antoviaque/configuration,jorgeomarmh/configuration,4eek/configuration,EDUlib/configuration,appsembler/configuration,edx/configuration,open-craft/configuration,rue89-tech/configuration,UXE/edx-configuration,UXE/edx-configuration,joshhu/configuration,jp-bpl/configuration,vasyarv/configuration,vasyarv/configuration,omarkhan/configuration,edx/configuration,knehez/configuration,UXE/edx-configuration,stvstnfrd/configuration,zhengjunwei/configuration,EDUlib/configuration,mitodl/configuration,ovnicraft/evex-configuration,cyanna/configuration,alu042/configuration,omarkhan/configuration,rue89-tech/configuration,jp-bpl/configuration,kursitet/configuration,cyanna/configuration,xiangjf/configuration,eduStack/configuration,ovnicraft/evex-configuration,negritobomb/edxplat,hastexo/edx-configuration,hastexo/edx-configuration,eduStack/configuration,lgfa29/configuration,fghaas/edx-configuration,usernamenumber/configuration,gashac03/ubuntu,arbrandes/edx-configuration,proversity-org/configuration,hastexo/edx-configuration-old,louyihua/configuration,IndonesiaX/configuration,proversity-org/configuration,pobrejuanito/configuration,AlfiyaZi/configuration,arifsetiawan/configuration,yrchen/configuration,openfun/configuration,glengal/configuration,Pieros/configuration,nunpa/configuration,apigee/edx-configuration,omarkhan/configuration,lgfa29/configuration,Carlos2005/configuration,antshin72/configuration,arifsetiawan/configuration,michaelsteiner19/open-edx-configuration,Livit/Livit.Learn.EdX.configuration,Livit/Livit.Learn.EdX.configuration,proversity-org/configuration,IndonesiaX/configuration,CredoReference/configuration,Carlos2005/configuration,B-MOOC/configuration,leansoft/configuration,vasyarv/configuration,Pieros/configuration,kursitet/configuration,cyanna/configuration,gashac03/ubuntu,chudaol/configuration,chenshuchuan/configuration,Unow/configuration,antoviaque/configuration,yrchen/configuration,kencung/configuration,marcore/configuration,gashac03/ubuntu,kmoocdev/configuration,Softmotions/configuration,chudaol/configuration,hastexo/edx-configuration,bugcy013/edx_infra,Stanford-Online/configuration,kencung/configuration,rue89-tech/configuration,Stanford-Online/configuration,nttks/configuration,zhengjunwei/configuration,CredoReference/configuration,Softmotions/configuration,armaan/edx-configuration,pobrejuanito/configuration,fghaas/edx-configuration,xiangjf/configuration,negritobomb/edxplat,hastexo/edx-configuration,cyanna/configuration,apigee/edx-configuration,sudheerchintala/LearnEra-Configuration,omarkhan/configuration,usernamenumber/configuration,louyihua/configuration,4eek/configuration,fghaas/edx-configuration,antoviaque/configuration,marcore/configuration,open-craft/configuration,IndonesiaX/configuration,hastexo/edx-configuration,hks-epod/configuration,IONISx/edx-configuration,LearnEra/LearnEra-Configuration,Carlos2005/configuration,Stanford-Online/configuration,LearnEra/LearnEra-Configuration,beacloudgenius/configuration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