Imio.actionspanel

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- Added parameter `catch_before_delete_exception=True` to the
`DeleteGivenUidView`. By default it will catch `BeforeDeleteException`
but when set to False, it will not be catch it. This let's catch
the exception in another method.
[gbastien]
- Call `reindexObject` when the BeforeDeleteException is catched because at
this moment, object has already been unindexed.
[gbastien]

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- Use api.adopt_roles rather than create a super user to execute a "own" delete
action.
[sdelcourt]
- Use plone.api.
[gbastien]
- Pass `**kwargs` to ContentDeletableAdapter.mayDelete.
[gbastien]

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- Make sure action title is translated.
[gbastien]

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- Display the description of actions while displayed as input.
[gbastien]

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- Added class on form button.
Changed select translation.
[sgeulette]
- The transition reason for which a transition can not be triggered now contains
the msg as a `zope.i18nmessageid.message.Message` instance, so translate it.
This is done because the appy `No` msg attribute can not be unicode...
[gbastien]

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- Fix workflow guard check on group conditions.
[sdelcourt]