Merge branch 'rewriteWithPlf4j' into 'master'

.gitignore

README.md

build.gradle

settings.gradle

.../griefed/serverpackcreatoraddonexample/ExamplePlugin.java

...n/java/de/griefed/serverpackcreatoraddonexample/Main.java

...creatoraddonexample/configuration/AddonConfiguration.java

...eatoraddonexample/configuration/ConfigurationHandler.java

...creatoraddonexample/configuration/ConfigurationModel.java

src/main/resources/addon.conf

...rexampleaddon/configuration/ConfigurationHandlerTest.java

...torexampleaddon/configuration/ConfigurationModelTest.java