Release multibase to maven central

[tdiesler]

The build of dependent projects rely on this to be found on central or some other mvn repository. I can provide a PR that would allow to run

mvn release:prepare

I could then use the created tag to deploy it to central. Better still, someone else with appropriate authorization could run

mvn release:perform

Here is the PR: #8

[ianopolous]

I don't use maven, but my understanding is that this is published to jitpack.io. Are you able to use that?

[tdiesler]

Yes, jitpack works fine - I was not aware of that.