Fix wrong import from six.moves to make openstackwatch workable

The method urlretrieve is part of urllib.request and not urllib.parse.

six.moves.urllib.request has to be used instead of six.moves.urllib.parse to
be able to use urlretrieve in the method get_javascript.

This solves the follwoing issue when running openstackwatch.

---snip---
AttributeError: 'Module_six_moves_urllib_parse' object has no attribute 'urlretrieve'
---snap---

Change-Id: I95d73b3d5b01bd7097295ba524e44954b7d284a5
diff --git a/jeepyb/cmd/openstackwatch.py b/jeepyb/cmd/openstackwatch.py
index c984818..b81ec9c 100644
--- a/jeepyb/cmd/openstackwatch.py
+++ b/jeepyb/cmd/openstackwatch.py
@@ -32,7 +32,7 @@
 import time
 
 import PyRSS2Gen
-import six.moves.urllib.parse as urlparse
+import six.moves.urllib.request as urlrequest
 
 PROJECTS = ['openstack/nova', 'openstack/keystone', 'opensack/swift']
 JSON_URL = 'https://review.openstack.org/query'
@@ -94,7 +94,7 @@
     url = CONFIG['json_url']
     if project:
         url += "+project:" + project
-    fp = urlparse.urlretrieve(url)
+    fp = urlrequest.urlretrieve(url)
     ret = open(fp[0]).read()
     return ret