HTTPS SSH
Example plugin that demonstrates how `scm-request-check`s can be used to 
only accept write operations (pushes) from selected IPs.

To configure the allowed IPs, add the following setting to your 
`STASH_HOME/shared/stash-config.properties`:

```
plugin.scm.check.ip.allowed=127.0.0.1,0:0:0:0:0:0:0:1
```