The eventLoop thread is a daemon

[Andrew Cagney <cagney at redhat dot com>]

Just a heads up,

I've changed the event-loop thread to a daemon so that it can exit 
without needing a join (I found a test leaving many event-loop threads 
lying around), and equally the main program can exit without first 
having to wait for the event-loop thread to exit.

This did lead to one tweak.  Most of the command line utilities contained:

   main() {
      ....
      Manager.eventLoop.start();
   }

which relied on the main thread blocking waiting for the event-loop 
thread to exit.  Here, it is much easier to run the event-loop thread 
directly vis:

   main() {
      ....
      Manager.eventLoop.run();
   }

Andrew