Fixed issue with CDATA in sub-log

[JENKINS-20977]
Fixed Issue with CDATA in sub-log

[JENKINS-20977]
ChangeLogWrapper now inherits from ChangeLogSet<Entry>

[JENKINS-21101]
Update pom.xml

Upgraded the plugin to use the current LTS release
Merge pull request #5 from elksson/master

Fixed [JENKINS-21101] & [JENKINS-20977]