fix(command): change Version to RaftVersion
fix(command): change Version to RaftVersion

clear up confusion on what this field is used for: it is for the
internal raft protocol version only.

achanda/etcd,StorReduce/etcd,freeloop1114/etcd,QuantiumTechnology/etcd,wantonsolutions/dinv-etcd,xychu/etcd,jefby/etcd,ktateish/etcd,onlyjob/etcd,combk8s/etcd,kingland/etcd,fanminshi/etcd,xueshanf/etcd,zaphod-concur/etcd,youxidev/etcd,msanterre/etcd,kkaneda/etcd,dannysauer/etcd,princeqjzh/etcd,glycerine/etcd,li-ang/etcd,glycerine/etcd,kingland/etcd,youxidev/etcd,justintung/etcd,SivagnanamCiena/etcd,jmptrader/etcd,glevand/coreos--etcd,linuxcer/etcd,tamird/etcd,cchamplin/etcd,Ulexus/etcd,nkhare/etcd,vimalk78/etcd,etcd-io/etcd,jravetch/etcd,purpleidea/etcd,tangkun75/etcd,qqsun8819/etcd,kkaneda/etcd,armstrongli/etcd,lorneli/etcd,Timer/etcd,axingblog/etcd,tangkun75/etcd,bspline/etcd,crandles/etcd,raoofm/etcd,chai2010/etcd,honeyqa/etcd,robszumski/etcd,armstrongli/etcd,insionng/etcd,siddontang/etcd,mike-lerch/etcd,gyuho/etcd,hpcloud/etcd,heyitsanthony/etcd,yudai/etcd,wfxiang08/etcd,whuwxl/etcd,pauldallen/etcd,Ulexus/etcd,openedbox/etcd,gouyang/etcd,sebschrader/etcd,improbable-io/etcd,mkumatag/etcd,cvik/etcd,dnaeon/etcd,hongchaodeng/etcd,csuideal/etcd,dalanlan/etcd,giantswarm/etcd,jravetch/etcd,hongbinz/etcd,fasaxc/etcd,barakmich/etcd,shawnps/etcd,hzy001/etcd,nekto0n/etcd,rchicoli/etcd,swingbach/etcd,rchicoli/etcd,giantswarm/etcd,beni55/etcd,wantonsolutions/dinv-etcd,nekto0n/etcd,shakefu/etcd,Ulexus/etcd,luxas/etcd,siddontang/etcd,offscale/etcd,steveeJ/etcd,axingblog/etcd,msanterre/etcd,snailwalker/etcd,lumjjb/etcd,improbable-io/etcd,chenbaihu/etcd,TheHippo/etcd,philips/etcd,mischief/etcd,yifan-gu/etcd,mgoelzer/etcd-fork2,freeloop1114/etcd,gityf/etcd,spacejam/etcd,bdarnell/etcd,xdlinear/etcd,beni55/etcd,csuideal/etcd,bspline/etcd,cognusion/etcd,chipironcin/etcd,mwitkow-io/etcd,philips/etcd,onlyjob/etcd,shafreeck/etcd,cvik/etcd,elimisteve/etcd,tempbottle/etcd,barakmich/etcd,spotify/etcd,gouyang/etcd,jchauncey/etcd,wantonsolutions/dinv-etcd,shafreeck/etcd,glensc/etcd,sayden/etcd,li-ang/etcd,cloudfoundry/etcd,fgbreel/etcd,yichengq/etcd,fgbreel/etcd,YuleiXiao/etcd,jlamillan/etcd,ajityagaty/etcd,ecnahc515/etcd,jlamillan/etcd,crandles/etcd,qqsun8819/etcd,sebrandon1/etcd,CrazyJvm/etcd,etcd-io/etcd,vimalk78/etcd,endocode/etcd,etcd-io/etcd,StorReduce/etcd,xueshanf/etcd,spacejam/etcd,SivagnanamCiena/etcd,heyitsanthony/etcd,handsomesun/etcd,arthurcolle/etcd,achanda/etcd,snailwalker/etcd,honeyqa/etcd,visheshnp/etcd,bakins/etcd,zaphod-concur/etcd,gtank/etcd,svdata/etcd,westhood/etcd,coreos/etcd,bluebreezecf/etcd,dterei/etcd,olark/etcd,Timer/etcd,pengzj/etcd,hongchaodeng/etcd,ajityagaty/etcd,yifan-gu/etcd,gae123/etcd,es-chow/etcd,swingbach/etcd,rnaveiras/etcd,delkyd/etcd,philips/etcd,buaazp/etcd,gyuho/etcd,plasticbox/etcd,polvi/etcd,steveeJ/etcd,xiang90/etcd,jefby/etcd,mickep76/etcd,iamqizhao/etcd,njucslqq/etcd,mgoelzer/etcd-fork2,spotify/etcd,cloudfoundry/etcd,shawnps/etcd,yichengq/etcd,robszumski/etcd,purpleidea/etcd,cvik/etcd,mkumatag/etcd,chai2010-playground/etcd,Eagle-X/etcd,raoofm/etcd,qiaochao911/etcd,mitake/etcd,dterei/etcd,asim/etcd,sofuture/etcd,insionng/etcd,dnaeon/etcd,YuleiXiao/etcd,endocode/etcd,gtank/etcd,hzy001/etcd,openedbox/etcd,mwitkow/etcd,insequent/etcd,sebrandon1/etcd,Winslett/etcd,insequent/etcd,offscale/etcd,dannysauer/etcd,jonboulle/etcd,pengzj/etcd,yyljlyy/etcd,mqliang/etcd,fasaxc/etcd,hpcloud/etcd,jonboulle/etcd,oscarrr110/etcd,polvi/etcd,OyTao/etcd_learning,whuwxl/etcd,wowsoso/etcd,Ulexus/etcd,westhood/etcd,olark/etcd,cvik/etcd,chai2010/etcd,sinsharat/etcd,handsomesun/etcd,ylong/etcd,jeremyeder/etcd,oscarrr110/etcd,tempbottle/etcd,lzbgt/etcd,arthurcolle/etcd,QuantiumTechnology/etcd,ajityagaty/etcd,jmptrader/etcd,njharman/etcd,lorneli/etcd,bakins/etcd,delkyd/etcd,hroyrh/etcd,elimisteve/etcd,ylong/etcd,nieanan/etcd,ravigadde/etcd,cloudfoundry/etcd,Winslett/etcd,betawaffle/etcd,chipironcin/etcd,bdarnell/etcd,CrazyJvm/etcd,xebitstudios/etcd,devfreesg/etcd,cockroachdb/etcd,Yhgenomics/etcd,njucslqq/etcd,njharman/etcd,gityf/etcd,shakefu/etcd,qiaochao911/etcd,ecnahc515/etcd,dalanlan/etcd,yudai/etcd,rnaveiras/etcd,bluebreezecf/etcd,xychu/etcd,Eagle-X/etcd,sebschrader/etcd,HideoYamauchi/etcd,justintung/etcd,nieanan/etcd,fanminshi/etcd,xdlinear/etcd,pigfoot/etcd,tamird/etcd,ravigadde/etcd,joshix/etcd,luxas/etcd,imzhulei/etcd,cloudfoundry/etcd,nkhare/etcd,combk8s/etcd,tguangch/etcd,gae123/etcd,mqliang/etcd,joshix/etcd,mike-lerch/etcd,gosharplite/etcd,asim/etcd,jchauncey/etcd,mischief/etcd,hroyrh/etcd,a-robinson/etcd,Yhgenomics/etcd,coreos/etcd,devfreesg/etcd,betawaffle/etcd,plasticbox/etcd,iamqizhao/etcd,es-chow/etcd,lzbgt/etcd,fasaxc/etcd,OyTao/etcd_learning,cockroachdb/etcd,mqliang/etcd,sinsharat/etcd,glensc/etcd,spotify/etcd,junxu/etcd,ktateish/etcd,a-robinson/etcd,mitake/etcd,hongbinz/etcd,akauppi/etcd,visheshnp/etcd,sayden/etcd,pauldallen/etcd,gosharplite/etcd,HideoYamauchi/etcd,junxu/etcd,buaazp/etcd,princeqjzh/etcd,chai2010-playground/etcd,lumjjb/etcd,wowsoso/etcd,rnaveiras/etcd,sofuture/etcd,mickep76/etcd,cognusion/etcd,svdata/etcd,akauppi/etcd,yyljlyy/etcd,TheHippo/etcd,mwitkow-io/etcd,imzhulei/etcd,xebitstudios/etcd,wfxiang08/etcd,tguangch/etcd,mwitkow/etcd,xiang90/etcd,jeremyeder/etcd,glevand/coreos--etcd,linuxcer/etcd,mkumatag/etcd,cchamplin/etcd,spotify/etcd,chenbaihu/etcd