Rename history_tail_reply back to history_reply.

IPython/frontend/qt/console/ipython_widget.py

@@ -160,7 +160,7 class IPythonWidget(FrontendWidget):
             else:
                 super(IPythonWidget, self)._handle_execute_reply(msg)
 
-    def _handle_history_tail_reply(self, msg):
+    def _handle_history_reply(self, msg):
         """ Implemented to handle history tail replies, which are only supported
             by the IPython kernel.
         """

IPython/frontend/qt/kernelmanager.py

@@ -46,7 +46,7 class QtXReqSocketChannel(SocketChannelQObject, XReqSocketChannel):
     execute_reply = QtCore.Signal(object)
     complete_reply = QtCore.Signal(object)
     object_info_reply = QtCore.Signal(object)
-    history_tail_reply = QtCore.Signal(object)
+    history_reply = QtCore.Signal(object)
 
     # Emitted when the first reply comes back.
     first_reply = QtCore.Signal()

IPython/zmq/ipkernel.py

@@ -348,7 +348,7 class Kernel(Configurable):
         else:
             hist = []
         content = {'history' : list(hist)}
-        msg = self.session.send(self.reply_socket, 'history_tail_reply',
+        msg = self.session.send(self.reply_socket, 'history_reply',
                                 content, parent, ident)
         logger.debug(str(msg))