Update pom properties for 2.0.2


git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1618447 13f79535-47bb-0310-9956-ffa450edef68
Update announcement for 2.0.2.


git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1618448 13f79535-47bb-0310-9956-ffa450edef68
Update release notes and changes for 2.0.2.


git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1618449 13f79535-47bb-0310-9956-ffa450edef68