Remove the exclude for 'org.apache.logging.log4j:log4j-to-slf4j'. Add an exclude for 'org.apache.logging.log4j:log4j-core'. Resolves gh-42.
These extensions will be used for testing and documentation purposes. For example, this module contains extensions to Apache Geode's o.a.g.security.SecurityManager and o.a.g.security.AuthInitialize interfaces used in the SBDG samples.