Bump CC and update cc job to allow user to set broker http request timeouts

Bump src/cloud_controller_ng

Bump cloudfoundry/cloud_controller_ng:
  Jimmy Da and Ryan Tang:
     Allow user to set http timeouts for v1 broker requests ( Travis Success: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/13945989 )
     Refactor request methods ( Travis Unknown )
     Allow user to set http timeouts for broker requests ( Travis Unknown )
  Matt Royal and alex choi:
     update bindings only if the duplicated fields are changed ( Travis Success: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/13944765 )
  Alex Suraci:
     lock down thin to 1.5.x ( Travis Failed: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/13933050 )
     bump cf-message-bus to fix nats reconnect bug ( Travis Failed: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/13928634 )
     remove stager client ( Travis Unknown )

[finishes #59922300]