CHANGELOG: add v1.29.0
CHANGELOG: add v1.29.0

kinvolk/rkt,alban/rkt,alban/rkt,kinvolk/rkt,kinvolk/rkt,lucasallan/rkt,rkt/rkt,lucasallan/rkt,lucasallan/rkt,coreos/rkt,joshix/rkt,kinvolk/rkt,joshix/rkt,lucasallan/rkt,joshix/rkt,rkt/rkt,coreos/rkt,joshix/rkt,rkt/rkt,rkt/rkt,coreos/rkt,alban/rkt