[Hawkular-dev] Grafana datasource release: 1.1.1

The Hawkular grafana datasource has been released today to 1.1.1: - Resolve variables in per-query tenant [1] and some related issues *Concretely, it can be used in multi-tenant scenario, like with OpenShift, where we want to have more or less the same dashboards repeated regardless the tenant.* - Add Dockerfile and instructions on how to build a docker image for dev [2] Release link: https://github.com/hawkular/hawkular-grafana-datasource/releases/tag/v1.1.1 DockerHub registry updated as well. [1] https://github.com/hawkular/hawkular-grafana-datasource/issues/90 [2] https://github.com/hawkular/hawkular-grafana-datasource/blob/master/docke... Big thanks to @ljuaneda <https://github.com/ljuaneda>;, @sbadakhc <https://github.com/sbadakhc> and @steveteuber <https://github.com/steveteuber> who have kindly been involved in the tests.