move apache-rat configuration from site to plugin-management sections, so that it also applies when "mvn apache-rat:check" is run
move apache-rat configuration from site to plugin-management sections, so that it also applies when "mvn apache-rat:check" is run

thanks to Karl Heinz Marbaise for the patch

apache/commons-lang,britter/commons-lang,weston100721/commons-lang,MarkDacek/commons-lang,weston100721/commons-lang,MarkDacek/commons-lang,apache/commons-lang,MarkDacek/commons-lang,arbasha/commons-lang,weston100721/commons-lang,arbasha/commons-lang,britter/commons-lang,arbasha/commons-lang,britter/commons-lang,apache/commons-lang