added a qstat like script

bin/iqstat.py

@@ -0,0 +1,13 @@
+import interp.bootstrap
+from   multiprocessing.managers import BaseManager
+class QueueManager(BaseManager): pass
+QueueManager.register('get_inqueue' )
+QueueManager.register('get_outqueue')
+m = QueueManager(address=('localhost', 6666), authkey='asdf')
+m.connect()
+m.get_outqueue()
+oq = m.get_outqueue()
+iq = m.get_inqueue()
+
+print "interp queue status:"
+print "  oq: %d, iq: %d" % (oq.qsize(), iq.qsize())