LoG4J2-351 changed Fragment-Host in generated manifest files from org.apache.commons.log4j-api to org.apache.logging.log4j-api

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1513877 13f79535-47bb-0310-9956-ffa450edef68