Merge pull request lagom#2839 from renatocaval/update-whitelist

Updated whitelist deps

Merge pull request lagom#2732 from dwijnand/1.6/is-a-main-branch

travis: Declare 1.6.x a main branch

Merge pull request lagom#2554 from ignasi35/fix-broken-link

Fix broken link

Merge pull request lagom#2523 from renatocaval/lagom-1.6.0-RC3

Avoid direct dependency on Play's Akka server

Releasing 1.5.5

Merge pull request lagom#2426 from ignasi35/review-slick-shutdown-steps

DB (Slick/JPA) shutdown must happen after cluster is shut down

Unblock vegemite

Merge pull request lagom#2362 from scala-steward/update/value-2.8.1

Update value to 2.8.1

Releasing 1.5.4

Merge pull request lagom#2283 from scala-steward/update/netty-codec-h…

…ttp-4.1.42.Final

Update netty-codec-http, netty-handler, ... to 4.1.42.Final