Imio.pm.ws

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- Fixed `test_ws_getItemInfosWithShowAssembly` as default value in
`PloneMeeting` testing profile changed to test held position having a
`&` character (non XHTML character).
[gbastien]
- When library `chardet` is available, it wrongly detect utf-8 passed string to
`BeautifulSoup` as being `iso-8859-1` leading to incorrect special characters.
`chardet` is now availabe because a dependency of `collective.zamqp`.
So pass `unicode` string to `BeautifulSoup` to avoid this.
[gbastien]

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- Added method `getSingleItemInfos` that return a single item informations,
not a list of `ItemInfo` instances.
Result and paramaters are exactly same as `getItemInfos`.
[gbastien]
- Make most most of data returned by `getItemInfos` nillable.
[gbastien]
- Added parameter `showEmptyValues=1` by default to `getItemInfos`,
making it possible to remove empty values from returned result.
[gbastien]

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- Manage field `toDiscuss` while creating new item.
[gbastien]
- Changed the way `wfTransitions` are managed in `createItem`: if a transition
is not available, it is ignored and next transition is tried, this way it is
easier to manage cases where item validation WF is different for proposing
groups.
[gbastien]

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- Do not fail in 'getItemInfos' when returning POD templates if a POD template
is using the odt_file of another POD template.
[gbastien]

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- Make it easier to detect if an item was created using the createItem SOAP WS
by adding a specific line to the item workflow_history like it is the case
when creating an item from an item template or from a recurring item.
[gbastien]

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- 'getItemInfos' returns 'meeting' containing the meeting UID if any.
[gbastien]
- 'searchItems' now accepts an additional search parameter 'linkedMeetingUID'.
[gbastien]