investigate using the Apache Tomcat Native library

[dmn]

In the Tomcat catalina logs you can see:

INFO: The Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path:

I think this refers to this:

​http://tomcat.apache.org/tomcat-5.5-doc/apr.html

for better performance. At the least we could make it easy for people wanting to add native library support.