Add group service spec.
Add group service spec.

NKMR6194/gitlabhq,michaKFromParis/gitlabhqold,stellamiranda/mobbr-gitlabhq,zBMNForks/gitlabhq,allistera/gitlabhq,yulchitaj/TEST3,LUMC/gitlabhq,mathstuf/gitlabhq,cncodog/gitlab,WSDC-NITWarangal/gitlabhq,mr-dxdy/gitlabhq,per-garden/gitlabhq,allysonbarros/gitlabhq,larryli/gitlabhq,mr-dxdy/gitlabhq,adaiguoguo/gitlab_globalserarch,yonglehou/gitlabhq,fscherwi/gitlabhq,luzhongyang/gitlabhq,iiet/iiet-git,zrbsprite/gitlabhq,jvanbaarsen/gitlabhq,michaKFromParis/sparkslab,zBMNForks/gitlabhq,daiyu/gitlab-zh,LytayTOUCH/gitlabhq,Burick/gitlabhq,t-zuehlsdorff/gitlabhq,dukex/gitlabhq,dvrylc/gitlabhq,Kambda/mobbr-gitlabhq,jrjang/gitlab-ce,kemenaran/gitlabhq,bbodenmiller/gitlabhq,folpindo/gitlabhq,youprofit/gitlabhq,michaKFromParis/gitlabhq,fendoudeqingchunhh/gitlabhq,nguyen-tien-mulodo/gitlabhq,aaronsnyder/gitlabhq,eliasp/gitlabhq,bigsurge/gitlabhq,OlegGirko/gitlab-ce,8thcolor/testing-public-gitlabhq,joalmeid/gitlabhq,szechyjs/gitlabhq,ayufan/gitlabhq,windymid/test2,ngpestelos/gitlabhq,martinma4/gitlabhq,yuyue2013/ss,nguyen-tien-mulodo/gitlabhq,michaKFromParis/gitlabhq,rebecamendez/gitlabhq,lvfeng1130/gitlabhq,WSDC-NITWarangal/gitlabhq,since2014/gitlabhq,yama07/gitlabhq,aaronsnyder/gitlabhq,mathstuf/gitlabhq,daiyu/gitlab-zh,htve/GitlabForChinese,MauriceMohlek/gitlabhq,kitech/gitlabhq,kitech/gitlabhq,williamherry/gitlabhq,xuvw/gitlabhq,LytayTOUCH/gitlabhq,allistera/gitlabhq,t-zuehlsdorff/gitlabhq,zBMNForks/gitlabhq,mr-dxdy/gitlabhq,flashbuckets/gitlabhq,axilleas/gitlabhq,rumpelsepp/gitlabhq,123Haynes/gitlabhq,sekcheong/gitlabhq,sekcheong/gitlabhq,aaronsnyder/gitlabhq,atomaka/gitlabhq,gorgee/gitlabhq,salipro4ever/gitlabhq,rumpelsepp/gitlabhq,ngpestelos/gitlabhq,icedwater/gitlabhq,salipro4ever/gitlabhq,yuyue2013/ss,gopeter/gitlabhq,dvrylc/gitlabhq,nmav/gitlabhq,Devin001/gitlabhq,shinexiao/gitlabhq,dwrensha/gitlabhq,nmav/gitlabhq,axilleas/gitlabhq,123Haynes/gitlabhq,cui-liqiang/gitlab-ce,adaiguoguo/gitlab_globalserarch,revaret/gitlabhq,yulchitaj/TEST3,jaepyoung/gitlabhq,tempbottle/gitlabhq,SkyWei/gitlabhq,theonlydoo/gitlabhq,WSDC-NITWarangal/gitlabhq,Soullivaneuh/gitlabhq,pulkit21/gitlabhq,Kambda/mobbr-gitlabhq,williamherry/gitlabhq,bbodenmiller/gitlabhq,Kambda/Mobbr,yatish27/gitlabhq,LUMC/gitlabhq,chenrui2014/gitlabhq,stanhu/gitlabhq,pkgr/gitlabhq,martinma4/gitlabhq,yama07/gitlabhq,yfaizal/gitlabhq,pjknkda/gitlabhq,8thcolor/testing-public-gitlabhq,martijnvermaat/gitlabhq,k4zzk/gitlabhq,wangcan2014/gitlabhq,lvfeng1130/gitlabhq,nmav/gitlabhq,kemenaran/gitlabhq,salipro4ever/gitlabhq,dvrylc/gitlabhq,jirutka/gitlabhq,dreampet/gitlab,Soullivaneuh/gitlabhq,jirutka/gitlabhq,ordiychen/gitlabhq,pjknkda/gitlabhq,julianengel/gitlabhq,rfeese/gitlab-ce,zrbsprite/gitlabhq,sekcheong/gitlabhq,OtkurBiz/gitlabhq,liyakun/gitlabhq,dplarson/gitlabhq,bigsurge/gitlabhq,Datacom/gitlabhq,jrjang/gitlabhq,atomaka/gitlabhq,joalmeid/gitlabhq,phinfonet/mobbr-gitlabhq,rhels/gitlabhq,xuvw/gitlabhq,DanielZhangQingLong/gitlabhq,theonlydoo/gitlabhq,folpindo/gitlabhq,bigsurge/gitlabhq,fpgentil/gitlabhq,openwide-java/gitlabhq,salipro4ever/gitlabhq,MauriceMohlek/gitlabhq,mrb/gitlabhq,cinderblock/gitlabhq,ibiart/gitlabhq,OtkurBiz/gitlabhq,gorgee/gitlabhq,tk23/gitlabhq,MauriceMohlek/gitlabhq,chadyred/gitlabhq,ordiychen/gitlabhq,Razer6/gitlabhq,chenrui2014/gitlabhq,zrbsprite/gitlabhq,theodi/gitlabhq,mavimo/gitlabhq,openwide-java/gitlabhq,eliasp/gitlabhq,allistera/gitlabhq,since2014/gitlabhq,iiet/iiet-git,cui-liqiang/gitlab-ce,ikappas/gitlabhq,tempbottle/gitlabhq,lvfeng1130/gitlabhq,TheWatcher/gitlabhq,delkyd/gitlabhq,koreamic/gitlabhq,fscherwi/gitlabhq,stoplightio/gitlabhq,ferdinandrosario/gitlabhq,martijnvermaat/gitlabhq,dukex/gitlabhq,louahola/gitlabhq,whluwit/gitlabhq,tim-hoff/gitlabhq,ZeoAlliance/gitlabhq,copystudy/gitlabhq,mavimo/gitlabhq,Soullivaneuh/gitlabhq,TheWatcher/gitlabhq,rumpelsepp/gitlabhq,fearenales/gitlabhq,jrjang/gitlabhq,sonalkr132/gitlabhq,hzy001/gitlabhq,H3Chief/gitlabhq,icedwater/gitlabhq,stanhu/gitlabhq,NARKOZ/gitlabhq,michaKFromParis/gitlabhqold,it33/gitlabhq,fantasywind/gitlabhq,tim-hoff/gitlabhq,kitech/gitlabhq,phinfonet/mobbr-gitlabhq,manfer/gitlabhq,johnmyqin/gitlabhq,sonalkr132/gitlabhq,luzhongyang/gitlabhq,ayufan/gitlabhq,OlegGirko/gitlab-ce,dplarson/gitlabhq,ttasanen/gitlabhq,fantasywind/gitlabhq,fantasywind/gitlabhq,sue445/gitlabhq,fearenales/gitlabhq,jirutka/gitlabhq,mmkassem/gitlabhq,ibiart/gitlabhq,Kambda/mobbr-gitlabhq,mavimo/gitlabhq,H3Chief/gitlabhq,dplarson/gitlabhq,ibiart/gitlabhq,gopeter/gitlabhq,hzy001/gitlabhq,mente/gitlabhq,zrbsprite/gitlabhq,youprofit/gitlabhq,nguyen-tien-mulodo/gitlabhq,per-garden/gitlabhq,fpgentil/gitlabhq,joalmeid/gitlabhq,stanhu/gitlabhq,gorgee/gitlabhq,tempbottle/gitlabhq,Exeia/gitlabhq,fgbreel/gitlabhq,Tyrael/gitlabhq,fantasywind/gitlabhq,windymid/test2,johnmyqin/gitlabhq,OtkurBiz/gitlabhq,vjustov/gitlabhq,koreamic/gitlabhq,williamherry/gitlabhq,mmkassem/gitlabhq,tk23/gitlabhq,delkyd/gitlabhq,manfer/gitlabhq,pulkit21/gitlabhq,johnmyqin/gitlabhq,chadyred/gitlabhq,t-zuehlsdorff/gitlabhq,sonalkr132/gitla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