Using RACK_ENV to tell newrelic which env it is

Signed-off-by: Phan Le <ple@pivotallabs.com>
Temp bump nats auth timeout to 15. Seems like the new nats auth is slow
Fix the nginx cloud controller ctl
Bump src/dea_next

Bump cloudfoundry/dea_ng:
  Eric Malm:
     Revert "Staging discards output from staging script." ( Travis created: https://travis-ci.org/cloudfoundry/dea_ng/builds/14284193 )