update zmq dependency on Windows to 2.1.7

IPython/parallel/__init__.py

@@ -15,9 +15,9 b' import zmq'
 
 
 if os.name == 'nt':
-    if zmq.__version__ < '2.1dev':
-        raise ImportError("On Windows, IPython.parallel depends on bugfixes only "
-        "in current git master of pyzmq, you appear to have %s"%zmq.__version__)
+    if zmq.__version__ < '2.1.7':
+        raise ImportError("IPython.parallel requires pyzmq/0MQ >= 2.1.7 on Windows, "
+        "and you appear to have %s"%zmq.__version__)
 elif zmq.__version__ < '2.1.4':
     raise ImportError("IPython.parallel requires pyzmq/0MQ >= 2.1.4, you appear to have %s"%zmq.__version__)
 

IPython/testing/iptest.py

@@ -107,7 +107,7 b" have['pymongo'] = test_for('pymongo')"
 have['wx'] = test_for('wx')
 have['wx.aui'] = test_for('wx.aui')
 if os.name == 'nt':
-    have['zmq'] = test_for('zmq', '2.1dev')
+    have['zmq'] = test_for('zmq', '2.1.7')
 else:
     have['zmq'] = test_for('zmq', '2.1.4')
 have['qt'] = test_for('IPython.external.qt')