Merge branch 'hotfix/0.2.3'

* hotfix/0.2.3:
  Added distributionManagement section to pom This allows deploy to maven central (sonatype)
  Bump Version to 0.2.3
Changed root package from io.github.achtern to org.achtern
Some minor changes in some classes are included in this commit
changed maven groupId to org.achtern as well
Merge branch 'master' into develop

* master:
Bump version to 0.3