Merge pull request #1938 from minrk/xreqxrep

Remove remaining references to deprecated XREP/XREQ names.

There was only one actual use of the deprecated constants in code, but numerous mentions in docstrings, etc.

These names have been removed from the next libzmq release, and will presumably be removed from pyzmq someday.

IPython/frontend/html/notebook/kernelmanager.py

@@ -193,7 +193,7 @@ class MultiKernelManager(LoggingConfigurable):
     def create_shell_stream(self, kernel_id):
         ip = self.get_kernel_ip(kernel_id)
         ports = self.get_kernel_ports(kernel_id)
-        shell_stream = self.create_connected_stream(ip, ports['shell_port'], zmq.XREQ)
+        shell_stream = self.create_connected_stream(ip, ports['shell_port'], zmq.DEALER)
         return shell_stream
 
     def create_hb_stream(self, kernel_id):