EDIT

fix log4j.xml

cleanup and javadoc

ref #10072 new methods for logging with deviating levels and reduce using of setLevel in production code

ref #10072 change log4j.properties to log4j.xml in commons, model, persistence and services

cleanup

ref #10072 use log4j2 in slf4j

avoid cookie error log on cnn

further changes for debugging

ref #10072 temporarily revert log4j.properties

ref #10072 temporarily rename log4j.xml