bump nats [delivers #79543220]

- Go back to apcera/nats from our fork now that client ping has been
merged in.

Submodule src/github.com/apcera/nats f4b6116...e17cb62:
  > Merge pull request #39 from fraenkel/client_ping
  > Minor cleanup, version bump
  > Merge pull request #36 from fraenkel/reconnect
  > Merge pull request #37 from apcera/fix-goveralls
  < Merge remote-tracking branch 'upstream/master' into reconnect-on-stale
  < NATS client should timeout on Reads eventually [#81327762]
  < Treat stale connections as temporary/recoverable errors

Signed-off-by: Amit Gupta <agupta@pivotal.io>
Use cats-ginkgo-opts stub in run_nondiego_cats script to generate manifest

Signed-off-by: Michael Fraenkel <fraenkel@us.ibm.com>
bump receptor runtime-schema

[delivers #79618176]

Submodule src/github.com/cloudfoundry-incubator/receptor d76676c..5fe5494:
  > Add GetAllActualLRPsByProcessGuid to Client
Submodule src/github.com/cloudfoundry-incubator/runtime-schema d1a3278..50f14d5:
  > Add GetActualLRPsByProcessGuid to ReceptorBBS
Merge remote-tracking branch 'origin/develop' into develop
bump executor [delivers #80393556]

Submodule src/github.com/cloudfoundry-incubator/executor 5cf330d..1ae8e1a:
  > Update download step test to make sure Perform does not fail in rate limit test [#80393556]
  > Limit number of concurrent upload steps [#80393556]
  > Change max concurrent downloads from 20 to 5. [#80393556]
  > Rate limit executor downloads at the step level to also limit stream-ins [#80393556]

Signed-off-by: Michael Fraenkel <fraenkel@us.ibm.com>
bump executor inigo runtime-schema

[delivers #77143796]

Submodule src/github.com/cloudfoundry-incubator/executor 1ae8e1a..836250f:
  > run step passes privileged flag to garden [#77143796]
Submodule src/github.com/cloudfoundry-incubator/inigo 12f5295..ec59698:
  > add test for running privileged commands [#77143796]
Submodule src/github.com/cloudfoundry-incubator/runtime-schema 50f14d5..7e1969d:
  > add Privileged flag to RunAction [#77143796]

Signed-off-by: Johannes Petzold <jpetzold@pivotal.io>
bump executor [delivers #80393556]

Submodule src/github.com/cloudfoundry-incubator/executor 836250f..99d1a3f:
  > Fix race in upload_step_test. [#80393556]

Signed-off-by: Michael Fraenkel <fraenkel@us.ibm.com>
Create final release 0.584 for build 338