Add a unit test for tag files packaged in JARs

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1551188 13f79535-47bb-0310-9956-ffa450edef68
No need to set defaults

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1551190 13f79535-47bb-0310-9956-ffa450edef68