2.27.0 * Remove sl-blip from dependency (Candy) * Fix race condition in replication tests (Miroslav Bajtoš) * test: remove errant console.log from test (Ryan Graham) * Promisify Model Change (Jue Hou) * Fix race condition in error handler test (Miroslav Bajtoš) * Travis: drop iojs, add v4.x and v5.x (Miroslav Bajtoš) * Correct JSDoc findOrCreate() callback in PersistedModel (Miroslav Bajtoš) * Hide verificationToken (Miroslav Bajtoš) * test: use ephemeral port for e2e server (Ryan Graham) * test: fail on error instead of crash (Ryan Graham) * ensure app is booted before integration tests (Ryan Graham) * Checkpoint speedup (Amir Jafarian) * Pull in API doc fix from PR into master #1910 (crandmck)