Support for different post/host in the ssh://... url in the web interface.

[bogeskov]

I've tried to run gitblit in a docker container, and wanted to run the ssh server on what looks like port 22.
However I didn't want to run it as root. So I exposed the default port as (server's 2nd ip) port 22.
Then I would like an easy way of using this port in the web interface.

So I added git.sshDisplayHost/Port to the config.

---

Commit comment:

Added git.sshDisplay{Port|Host} to hide port forward.

Running gitblit in a container it's easy to expose the ssh on the default port.
Using git.sshDisplayPort/git.sshDisplayHost you can expose the forwarded address
as the official location.

[gitblit]

I understand the use-case for the port. I am not understanding the hostname setting. When would the hostname in web.canonicalUrl be different than the one in git.sshDIsplayHost?

[bogeskov]

The reason for the git.sshDisplayHost, is that the primary url is mapped into an apache with proxypass together with some other services (/artifactory, /jenkins, /moinmoin , /sonarqube, ...), so that I have only one http entrypoint. But the ssh is on the server that actually runs the docker gitblit container.
I suppose I could install a port forwarder on port 22 on the webserver machine, and then add an extra ip, to that one for ssh access. However if I was to go that way, I would should probably rethink the entire setup, which has all the symptoms of a but shooting organism.

[bogeskov]

Just realized that I didn't handle empty settings properly. Committed a fix to that.

[gitblit]

I manually merged & revised your contribution to the develop branch. Thanks!