Put comments in to hint a decent strategy to profile runtime performance

To do performance optimization in this sort of application, this is
about as well as I have been able to manage in python.  I will say perl with
NYTProf seems to be significantly better for data, but this is servicable.

I tried yappi, but it goes wildly inaccurate with this codebase.  Because of
the eventlet plumbing, cProfile is still pretty misleading.  Best strategy
seems to be review cumulative time with a healthy grain of salt around the
top items until you get down to info that makes sense.  For example, trampoline
unfairly gets a great deal of the 'blame' by taking on nearly all the activity.

internal time seems to miss a great deal of important information.

bin/confluent-server.py

@@ -5,4 +5,14 @@ path = os.path.realpath(os.path.join(path, '..'))
 sys.path.append(path)
 from confluent import main
 
+#import cProfile
+#import time
+#p = cProfile.Profile(time.clock)
+#p.enable()
+#try:
 main.run()
+#except:
+#   pass
+#p.disable()
+#p.print_stats(sort='cumulative')
+#p.print_stats(sort='time')