[LOG4J2-800] All life cycle implementations should be serializable.

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1620401 13f79535-47bb-0310-9956-ffa450edef68
[LOG4J2-800] All life cycle implementations should be serializable.
[LOG4J2-801] org.apache.logging.log4j.core.Logger should be serializable.

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1620406 13f79535-47bb-0310-9956-ffa450edef68