Bump src/cloud_controller_ng, src/dea_next

Bump cloudfoundry/cloud_controller_ng:
  Alex Suraci and Maria Shaldibina:
     updating an app's routes sets a new version ( Travis started: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/12349629 )
  Tim Labeeuw:
     Add the curl command to the api docs ( Travis Failed: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/12344193 )
Bump cloudfoundry/dea_ng:
  Alex Suraci and Maria Shaldibina:
     update running version if included in dea.update ( Travis created: https://travis-ci.org/cloudfoundry/dea_ng/builds/12349656 )
     Stop sending advertisements in response to USR1 ( Travis Unknown )
     load from snapshots again, snapshot staging tasks ( Travis Unknown )
  Tim Labeeuw:
     Always run the race detection during tests ( Travis Failed: https://travis-ci.org/cloudfoundry/dea_ng/builds/12347122 )