Incremental compiler with broccoli integration#92

Merged

chriskrycho merged 3 commits intotyped-ember:fast-incremental-compilerfrom

dfreeman:incremental-with-broccoli

Feb 5, 2018

Commits on Feb 4, 2018

Avoid double-including files
dfreeman
committed

Commits on Feb 5, 2018

Spike out a Broccoli-integrated incremental compiler so regular ember-cli commands work
dfreeman
committed
Fix addons' `app` trees and cleanup dead code
dfreeman
committed