[ELASTIC-97] Increase Kibana install timeout (#1131)
[ELASTIC-97] Increase Kibana install timeout (#1131)

Increase from 15 to 30 minutes as it's sometimes taking 14+ mins during Jenkins runs
mesosphere/dcos-commons,mesosphere/dcos-commons,vishnu2kmohan/dcos-commons,mesosphere/dcos-commons,vishnu2kmohan/dcos-commons,mesosphere/dcos-commons,vishnu2kmohan/dcos-commons,mesosphere/dcos-commons,vishnu2kmohan/dcos-commons,vishnu2kmohan/dcos-commons