Bump src/cloud_controller_ng

Bump cloudfoundry/cloud_controller_ng:
  Eric Malm:
     Initialize configuration better in bin/console ( Travis started: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/14336594 )
     Install pry gem by default so bin/console works ( Travis Unknown )
     bin/console will prefer config file given as argument ( Travis Unknown )