Disabled test_xmlrpc:test_404. It's causing lots of false alarms.
I also disabled a test in test_ssl which requires network access to svn.python.org. This fixes a bug Skip has reported a while ago.
diff --git a/Lib/test/test_xmlrpc.py b/Lib/test/test_xmlrpc.py
index eb39d27..4dd3316 100644
--- a/Lib/test/test_xmlrpc.py
+++ b/Lib/test/test_xmlrpc.py
@@ -392,7 +392,8 @@
                 # protocol error; provide additional information in test output
                 self.fail("%s\n%s" % (e, e.headers))
 
-    def test_404(self):
+    # [ch] The test 404 is causing lots of false alarms.
+    def XXXtest_404(self):
         # send POST with httplib, it should return 404 header and
         # 'Not Found' message.
         conn = httplib.HTTPConnection('localhost', PORT)