Imio.dashboard

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- Add 'use_objects' attribute on dashboard template if you want to have iterate over the objects
and their helper view rather than the brains.
[sdelcourt]

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- Use CheckBoxFieldWidget for IDashboardPODTemplate.dashboard_collections to
ease selection when displaying several elements.
[gbastien]

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- Added javascript variables for i18n.
[sgeulette]
- Enable merging and caching for imio.dashboard.js in portal_javascripts.
[gbastien]

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- Check if there are some checkboxes on a faceted to get uids.
[bsuttor]
- Added plone.app.collection as a dependency.
[gbastien]

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- Check if context is provided by IDashboardCollection to count number of dashborad collections.
[bsuttor]

- Check if context is provided by IDashboardCollection to display_number_of_items.
[bsuttor]

- Updated _get_generation_context to add needed parameter from documentgenerator.
Test context variables integration
[sgeulette]

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- Added own doc generation dashboard viewlet.
Modified generation view to handle both outside or inside dashboard generations.
[sgeulette]
- Display category in pod template collections vocabulary
[sgeulette]
- Test exception when getting criterion value.
[sgeulette]
- Check if we are in dashboard documentgenerator viewlet. For some content with iframe dashboard,
there can be also a normal documentgenerator viewlet.
[sgeulette]