NMS-6901 clean up handling of alarm severities
bump version of refresher
NMS-6929 fix "loading" spinner location
NMS-6901 add a data "refresh" method accessible from the frontend
NMS-6901 rearrange initialization, refresh data sooner on startup
NMS-6901 clean up incredibly inefficient alarm/node query
Merge remote-tracking branch 'origin/jira/NMS-6901' into rc/stable/1.14.0