Merge upstream train picks from stein

[jovial]

• cd465b9 Add Elasticsearch Curator Docker image (Add Elasticsearch Curator Docker image #46)
  • in ussuri
  • already cherry-picked
• 791cc7a Install Monasca plugin for Grafana by default (Install Monasca plugin for Grafana by default #39)
  • not merged: https://review.opendev.org/#/c/676185/
• fa2afb8 Add travis.yml
  • need for github

[jovial]

@Wasaac I noticed that https://review.opendev.org/#/c/676185/ isn't passing CI - do we still want it or should we wait for it to land in master?

[Wasaac]

@Wasaac I noticed that https://review.opendev.org/#/c/676185/ isn't passing CI - do we still want it or should we wait for it to land in master?

CI appeared to use a custom npm registry lacking one of the components needed. So far it's worked for us but I should push to get the tests passed upstream instead.