v1.5.0

• Update Grafana to 1.8.0

warning

• Check for the presence of node['grafana']['es_role'] and
  node['grafana']['graphite_role'] instead of node['grafana']['es_server']
  and node['grafana']['graphite_server'] to know if we should search and
  replace default['grafana']['es_server'] and
  default['grafana']['graphite_server'] (Jonathon W. Marshall) #22