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 branch 'master' of github.com:cloudfoundry/cloud_controller_ng
Send provider in gateway provision request (with bump to vcap-common)

 - git shortlog 055964f622..9267b079b1
    Harshawardhan Gadgil (1):
      Add (optional) provider to GatewayProvisionRequest

Change-Id: I2aba012badd16bc1a81c1598f65d041e94b38da3