[LOG4J-507] Space Level numbers by 100 instead of 1.

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1560351 13f79535-47bb-0310-9956-ffa450edef68
Update next release date year.

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1560352 13f79535-47bb-0310-9956-ffa450edef68