cleanup pep8 and pyflakes
whitespace cleanup
Add some missing iPython support for runcall and broken_delete
autopep8
Add zope.testrunner support
Enable ZODB pickling error debugging for both instance and test
Improve debug mode detection, provide a ZCML feature, and enable for 'test -D'
Load by default under Plone.  Makes enabling with 'test -D' automatic.