the java/target/status script now uses the consolidated
/sailingserver/api/v1/status end point and returns a 200 response if and
only if the RacingEventService has loaded all races it needs to load and
replication reports availability. In all other cases, non-2XX codes
are reported, such as 503 (not available) or 404 (not found)
Change-Id: I55ca3c98de993be0e6fff8e02837d17dd54431f6
it considers the outputs of /index.html, scanning for a 2XX HTTP
response code, checks the availability of the RacingEventService using
the /sailingserver/api/v1/status end point and checks the replication
stack for availability using /replication/replication?action=STATUS
Change-Id: Ic277aa5a248b5bc31a7042f46b388e734655c980