Ftw.publisher.sender

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- Added some german translations and added plain english po-file
[mathias.leimgruber]

- Merged lock-config-branch into trunk
Bei Direktem Publishing ohne Queu macht das Locking keinen Sinn.
Daher kann man nun das Locking einschalten/ausschalten.
[mathias.leimgruber]

- Added new IBeforeQueueExecutionEvent, which allows third party packages to do dome stuff.
[jone]

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- Added missing message factory import in publishploneformgen.py
[jone]

- Added `QueueExecutedEvent`
[jone]

- Added viewlet manager on configlet page.
[jone]

- Do not catch BadStatusLine exceptions since the should be moved
to the executed jobs list like when regular exceptions occur.
[jone]

- Added batching to executed jobs view
[jone]

- Added upgrade step for migrating the executed jobs storage to IOBTree
[jone]

- Added some storage tests and changed the executed jobs storage to
a IOBTree storage for better performance.
[jone]

UPGRADES:

- portal_setup: run the ftw.publisher.sender upgrade step for migrating storage

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- Use the translated communication state names
[jone]

- Show json cache path in configuration
[jone]

- Executed jobs list: made more robust ; reversed listing
[jone]

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- Fixed bad adapter usage
[jone]

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- Added string encoding / decoding methods which work with json
[jone]

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- Fixed fixed namespace_packages in setup.py
[jone]