Update changelog

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branch : distribute
extra : rebase_source : 44b7e6234f791c1a1182f202bc429d40922074ee

CHANGES.txt

@@ -9,6 +9,7 @@ CHANGES
 * Fix 2 errors with Jython 2.5.
 * Fix 1 failure with Jython 2.5 and 2.7.
 * Disable workaround for Jython scripts on Linux systems.
+* Issue #336: `setup.py` no longer masks failure exit code when tests fail.
 
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 0.6.32