Create a private Maven repo to publish the artifacts

Since the library is not published on a public Maven repo, there is a need to publish it in a "private" Maven repo through Github Pages. Right now, some settings are hard coded for my fork, so the following steps should be done:

* create `mvn-repo` branch and remove all source code from this branch,
* add empty `.nojekyll` file in the branch,
* change the repositoryOwner in `pom.xml:57` to `Matthias247`,
* update the repo url in README to `https://raw.github.com/Matthias247/jawampa/mvn-repo/`.

The server credentials should be add in settings.xml, e.g.:

    <server>
      <id>github</id>
      <username>Matthias247</username>
      <password>*****</password>
    </server>

Now you should be able to execute `mvn deploy` command that will publish the artifact to `mvn-repo` branch.