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* Changed API methods and arguments to mixedCase to be more consistent with
the rest of Zope. This is a non-backwards-compatible change. Our profuse
apologies, but it's now or never. :-/
If you find that you get import errors or unknown keyword arguments in your
code, please change names from foo_bar too fooBar, e.g. add_field() becomes
addField().
[optilude]