Support for hapi v21, node v18, ESM tests, multiple registration

migrate to new travis format

update to hapi 20

upgrade semver and lab

Only node 12

Require hapi 18

Re-fix issue #44 which was reverted in changeset da33ea7

Change module namespace

Cleanup

Update to follow node > 4 style standards

hapi8. Closes #21

hapi 8.0 API

lab 4.0

Rename spumko to hapijs

hapi 3.0