Add support for `receive.advertisePushOptions`
Add support for `receive.advertisePushOptions`

See [install](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/install/installation.md)
which suggests doing:

```
sudo -u git -H git config --global receive.advertisePushOptions true
```

Signed-off-by: Don Bowman <0352a8acc949c7df21fec16e566ba9a74e797a97@donbowman.ca>

sameersbn/docker-gitlab,solidnerd/docker-gitlab,3kami3/docker-gitlab,3kami3/docker-gitlab,sameersbn/docker-gitlab,solidnerd/docker-gitlab