Add 'final'

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1460107 13f79535-47bb-0310-9956-ffa450edef68
Remove UserDataHelper properties read permissions from "tomcat-juli.jar" section of catalina.policy
The class using them was moved to o.a.t.util.log package and is now in tomcat-coyote.jar.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1460115 13f79535-47bb-0310-9956-ffa450edef68