Add new logo

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1610065 13f79535-47bb-0310-9956-ffa450edef68
Add missing licesne header

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1610066 13f79535-47bb-0310-9956-ffa450edef68