CHANGELOG: add v3.2.9, minor updates
CHANGELOG: add v3.2.9, minor updates

Signed-off-by: Gyu-Ho Lee <3454051ee3341eb69bdf6fca40899cdad4d86496@gmail.com>

heyitsanthony/etcd,gyuho/etcd,vimalk78/etcd,ajityagaty/etcd,dannysauer/etcd,li-ang/etcd,rnaveiras/etcd,joshix/etcd,etcd-io/etcd,etcd-io/etcd,lorneli/etcd,coreos/etcd,bdarnell/etcd,bluebreezecf/etcd,ajityagaty/etcd,etcd-io/etcd,cockroachdb/etcd,lorneli/etcd,bluebreezecf/etcd,dannysauer/etcd,sinsharat/etcd,xiang90/etcd,joshix/etcd,akauppi/etcd,mqliang/etcd,heyitsanthony/etcd,mqliang/etcd,whuwxl/etcd,mqliang/etcd,xiang90/etcd,sebrandon1/etcd,fanminshi/etcd,fanminshi/etcd,YuleiXiao/etcd,coreos/etcd,mkumatag/etcd,YuleiXiao/etcd,ajityagaty/etcd,mkumatag/etcd,rnaveiras/etcd,sebrandon1/etcd,gyuho/etcd,whuwxl/etcd,sinsharat/etcd,glevand/coreos--etcd,bdarnell/etcd,cockroachdb/etcd,glevand/coreos--etcd,li-ang/etcd,rnaveiras/etcd,mkumatag/etcd,akauppi/etcd,vimalk78/etcd