remove or change RPM preamble's commons-dameon classpath entry

The RPM preamble has the following:

CLASSPATH="${CLASSPATH}:$(build-classpath commons-daemon 2>/dev/null)"

Note that had been previously removed with JWS-96. And this has been seen to cause an empty trailing ':' entry in the classpath, which the JVM interprets to be the current /usr/share/tomcat8 directory. That can cause unwanted scanning for longer start ups. Perhaps that should be removed or just changed to:

CLASSPATH="${CLASSPATH}:${CATALINA_HOME}/bin/commons-daemon.jar"