Bump src/cloud_controller_ng, src/dea_next

Bump cloudfoundry/cloud_controller_ng:
  Karl Isenberg:
     Refactor requires to modularize dependendencies. ( Travis Success: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/20982130 )
Bump cloudfoundry/dea_ng:
  Phan Le:
     DEA uses vcap_application from CC ( Travis Success: https://travis-ci.org/cloudfoundry/dea_ng/builds/20955592 )
     Fix incorrect use of instance_double ( Travis Unknown )
     Move env helper classes to namespace ( Travis Unknown )
     Introduce EnvStrategyChooser ( Travis Unknown )
     Proper naming for starting/staging env ( Travis Unknown )
     Add NullEnvExporter to Env spec ( Travis Unknown )
     Fix env exporter spec to support ordering ( Travis Unknown )
     Refactor exported env vars ( Travis Unknown )
     Extract environment variable exporting behavior ( Travis Unknown )
     Refactor env spec. ( Travis Unknown )
     Merge branch 'baduri' of github.com:fraenkel/dea_ng into fraenkel-baduri ( Travis Success: https://travis-ci.org/cloudfoundry/dea_ng/builds/20468699 )
  Chris Adams:
     Merge pull request #101 from mheath/dontlogmypassword ( Travis Failed: https://travis-ci.org/cloudfoundry/dea_ng/builds/20159048 )
  fraenkel:
     Handle URIs that fail to parse ( Travis Unknown )
  Mike Heath:
     Changed logging level of plugin config dump from info to debug. ( Travis Unknown )