Choosse names for constants that reflect more
correctly their meaning.

The original names only made sense when we did
not have automatic shm size calculation many
releases ago.


git-svn-id: https://svn.apache.org/repos/asf/tomcat/jk/trunk@1647189 13f79535-47bb-0310-9956-ffa450edef68
Add another error message.


git-svn-id: https://svn.apache.org/repos/asf/tomcat/jk/trunk@1647190 13f79535-47bb-0310-9956-ffa450edef68