EDIT

cleanup

ref #10072 some adaptations for setLevel in vaadin

cleanup and upgrade requiredMavenVersion

ref 10072 remove LoggingConfigurer from vaadin

ref 10072 remove log4j12 from vaadin and adapt log4j properties

ref #9359 try to remove springmodules from vaadin

ref #10072 final adaption log4j12->log4j2 in vaadin

cleanup

ref #10095, ref #9359 adapt json version in vaadin to cdmlib json version

ref #10072 adapt vaadin to log4j2 and cleanup