Auto merge of #695 - micbou:windows-psutil, r=valloric

[READY] Exclude psutil 5.0.1 from test requirements

Last version of psutil (5.0.1) is broken on Python 3.6 and Windows 64-bit. See issue giampaolo/psutil#951. We exclude it from our test requirements. This fixes the builds with `arch=64` and `python=36` on AppVeyor.

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test_requirements.txt

@@ -8,7 +8,8 @@ WebTest      >= 2.0.20
 ordereddict  >= 1.1
 nose-exclude >= 0.4.1
 unittest2    >= 1.1.0
-psutil       >= 3.3.0
+# psutil 5.0.1 is broken on Python 3.6 and Windows 64-bit
+psutil       >= 3.3.0, != 5.0.1
 # This needs to be kept in sync with submodule checkout in third_party
 future       == 0.15.2
 coverage     >= 4.2