title: What is the quartz default thread count
body: <p>I am new to <code>Quartz</code>. I did manage to figure out that default value for Scheduler configuration is <code>org.quartz.threadPool.threadCount=-1</code>. </p>
  
  <p>But it did not find anywhere what this implies. Does this mean that there will be only one thread or has it some other 'number'?</p>
  
  <p>I am playing with quartz-scheduler v2.2.</p>