Spec updates to match ccng template changes supporting external_protocol
Merge remote-tracking branch 'origin/pr/355' into develop

Signed-off-by: James Myers <jmyers@pivotallabs.com>
Bump src/cloud_controller_ng

Bump cloudfoundry/cloud_controller_ng:
  Kai Zhang:
     Merge remote-tracking branch 'origin/pr/205' ( Travis Unknown )
  Mike Youngstrom:
     Support for specifying an https url for staging upload ( Travis Unknown )

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