Merge pull request #539 from ember-learn/release-preview #446

Job	Run time
Lint	20s
Percy Tests	2m 34s
Tests	44s
Floating Dependencies	53s
ember-release-no-deprecations - Allowed to fail	53s
ember-lts-5.4	49s
ember-lts-4.4	50s
ember-lts-3.28	58s
ember-lts-4.8	54s
ember-lts-5.8	58s
ember-canary - Allowed to fail	55s
ember-release	1m 8s
embroider-optimized	57s
ember-lts-4.12	50s
no-deprecations	50s
ember-beta	1m 4s
embroider-safe	54s
	16m 31s

Provide feedback