Put builder output through status interface

Send all output after manifest parsing is finished to the Status
interface, so that when status frontends are added they can handle
build messages.

(cherry-picked from commit 4b08318463cdf0eaeb702c3a11214377875458ff)

Change-Id: I0de5b6c546b135c53bf3e0762207732e9bdd9cba
6 files changed