add readline for command history in the tester module. so nice!

screenless/bureau/kbtest.py

@@ -1,4 +1,5 @@
 import os
+import readline
 import time
 
 import zmq
@@ -6,6 +7,7 @@ import zmq
 ctx = zmq.Context()
 
 basepath = os.path.expanduser("~/.screenless/")
+last = ""
 
 while True:
     msg = input("> ")