Bump src/cloud_controller_ng

Bump cloudfoundry/cloud_controller_ng:
  Kai Zhang:
     Merge remote-tracking branch 'origin/pr/215' ( Travis Unknown )
  fraenkel:
     When start/scale fail, undo any changes made ( Travis Unknown )

Signed-off-by: James Myers <jmyers@pivotallabs.com>
Update the name of the gorouter submodule

Signed-off-by: James Myers <jmyers@pivotallabs.com>