Collective.singing

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- Start depending on plone.z3cform>=0.3dev
[nouri]

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- Added optional checking for channel attr 'subscribeable' to
channel_lookup. Subscription validaton and the subscribe portlet use
this feature.
[tmog]

- Bringing versioning in line with
http://peak.telecommunity.com/DevCenter/setuptools
[stonor]

- Added full_schema used on the edit page for Filtered Collectors. Now
we can re-edit these ;-)
[tmog]

- Make call of MessageQueues.flush() more flexible to get a handy
method to flush also new messages. this doesnt change any current
behaviour.
[jensens]

- Added Polish translation by Barbara Struk
[naro]

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- Use zc.lockfile instead of the excessive use of transaction.commit()
to lock the queue processing.
[nouri]

- Use email.Header module for message header formatting
Refactored mail.py to create messages MIMEMultipart based
[naro]

- added Czech translation
[naro]

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- Commit after pulling a message from the queue.
[nouri]

- ITransform is now an adapter on the content being transformed
instead of a utility. This allows us to use the content's URL
when rewriting links.
[tmog]

- updated pot and danish translation.
[bartholdy]

- Add button to subscribe form to "Send my subscription details",
for when subscribers forgot their secret.
[nouri]

- Cleaned up a bit in a few templates. Needed to structure
view/Desvription in wizard. Got rid of annoying label filters in
wizard-step.
[bartholdy]