Persist the 1st report of worker (#127)

I would like to see that the 1st report is persisted in the mongodb just like the last report in work_stop()

Author: ecebuzz

mrq/worker.py

@@ -172,6 +172,7 @@ def greenlet_report(self):
             Should we do this in a thread instead?
          """
 
+        self.report_worker(w=1)
         while True:
             try:
                 self.report_worker()