etcdctlv3: implement the client side functionality
etcdctlv3: implement the client side functionality

mkumatag/etcd,plasticbox/etcd,OyTao/etcd_learning,a-robinson/etcd,akauppi/etcd,joshix/etcd,ajityagaty/etcd,endocode/etcd,zaphod-concur/etcd,cockroachdb/etcd,akauppi/etcd,cockroachdb/etcd,visheshnp/etcd,purpleidea/etcd,CrazyJvm/etcd,etcd-io/etcd,achanda/etcd,mickep76/etcd,tguangch/etcd,sofuture/etcd,yudai/etcd,joshix/etcd,sebrandon1/etcd,achanda/etcd,hongchaodeng/etcd,hongchaodeng/etcd,linuxcer/etcd,lumjjb/etcd,luxas/etcd,YuleiXiao/etcd,qqsun8819/etcd,gyuho/etcd,linuxcer/etcd,wantonsolutions/dinv-etcd,sinsharat/etcd,xiang90/etcd,YuleiXiao/etcd,a-robinson/etcd,rchicoli/etcd,li-ang/etcd,sofuture/etcd,bluebreezecf/etcd,whuwxl/etcd,coreos/etcd,armstrongli/etcd,mqliang/etcd,fanminshi/etcd,sebrandon1/etcd,ajityagaty/etcd,westhood/etcd,armstrongli/etcd,tguangch/etcd,ktateish/etcd,lumjjb/etcd,bdarnell/etcd,westhood/etcd,jonboulle/etcd,dannysauer/etcd,yudai/etcd,tamird/etcd,rnaveiras/etcd,bluebreezecf/etcd,lorneli/etcd,ravigadde/etcd,glevand/coreos--etcd,dnaeon/etcd,gyuho/etcd,wantonsolutions/dinv-etcd,etcd-io/etcd,rchicoli/etcd,qqsun8819/etcd,OyTao/etcd_learning,lorneli/etcd,luxas/etcd,etcd-io/etcd,chipironcin/etcd,rnaveiras/etcd,handsomesun/etcd,nekto0n/etcd,visheshnp/etcd,xiang90/etcd,ktateish/etcd,dnaeon/etcd,CrazyJvm/etcd,StorReduce/etcd,jlamillan/etcd,glycerine/etcd,vimalk78/etcd,bdarnell/etcd,mickep76/etcd,purpleidea/etcd,jonboulle/etcd,StorReduce/etcd,sinsharat/etcd,ajityagaty/etcd,mqliang/etcd,wantonsolutions/dinv-etcd,nekto0n/etcd,jlamillan/etcd,mkumatag/etcd,heyitsanthony/etcd,heyitsanthony/etcd,handsomesun/etcd,mkumatag/etcd,fanminshi/etcd,plasticbox/etcd,swingbach/etcd,swingbach/etcd,zaphod-concur/etcd,glycerine/etcd,endocode/etcd,chipironcin/etcd,li-ang/etcd,coreos/etcd,vimalk78/etcd,insequent/etcd,mqliang/etcd,insequent/etcd,whuwxl/etcd,dannysauer/etcd,glevand/coreos--etcd,ravigadde/etcd,rnaveiras/etcd,tamird/etcd