Bump src/cloud_controller_ng

Bump cloudfoundry/cloud_controller_ng:
  Karl Isenberg:
     Fix require paths ( Travis created: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/21040436 )
Bump src/cloud_controller_ng

Bump cloudfoundry/cloud_controller_ng:
  Karl Isenberg:
     Introduce order-direction ( Travis Unknown )
     Updating the API checksum to reflect changes in previous commits. ( Travis Success: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/21058134 )
     Extract order logic to make easier to test ( Travis Failed: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/21051635 )
  Abhijit Hiremagalur:
     Extract parse_params into CommonParams ( Travis Failed: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/21048621 )
     Remove unused method on base class ( Travis Unknown )