switch to using sonatype-oss-parent
switch to using sonatype-oss-parent

needed to add the compiler plugin to do this

was able to remove the remaining repository element after doing this

tristan/jsonld-java,giorgos1987/jsonld-java,dyanarose/jsonld-java,westei/jsonld-java,jsonld-java/jsonld-java,giorgos1987/jsonld-java,westei/jsonld-java,tristan/jsonld-java,dyanarose/jsonld-java