Added support for arrays of app domains

[#70397660]

Signed-off-by: Karl Isenberg <kisenberg@pivotallabs.com>
Bump src/cloud_controller_ng

Bump cloudfoundry/cloud_controller_ng:
  Karl Isenberg:
     Updated api spec hash to match recent restage changes ( Travis created: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/24674261 )