Send current user's guid in Gateway Provision request

- Bump vcap-common (required for updated gateway provision request)

  git shortlog b9024a52..055964f622

  Dr Nic Williams (1):
      VCAP::Component.register returns its configuration

  Harshawardhan Gadgil (1):
      Add (optional) user guid and space guid to gateway provision request

Change-Id: I3ad8827c9d5ef0e017fde34d58c2baf10ee8ac21
Merge "Send current user's guid in Gateway Provision request"