Collective.contact.core

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- Call `gender_person_title_mapping.json` from JS on `portal_url`.
[gbastien]

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- Added method `held_position.get_label` to get the `held_position` label so it
is easy to override.
[gbastien]
- Removed check on `ajax_load` when rendering `plone.abovecontenttitle` and
`plone.belowcontentbody` viewlet managers or it is not possible to render any
viewlet when content is displayed in an overlay. This was done for
`directory`, `contact`, `organization`, `person` and `position` views.
[gbastien]

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- Removed useless Attribute field `is_created` from `IPerson` schema.
Added corresponding migration.
[gbastien]
- Make `held_position.get_title` return unicode.
[gbastien]
- Added parameter `include_person_title=True` to `person.get_title` and to
`held_position.get_person_title` so we get person `firstname/lastname`
without `person_title`.
[gbastien]
- Added image field `person.signature`.
[gbastien]

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- Render `plone.abovecontenttitle` and `plone.belowcontentbody` viewlets
in the directory view.
[gbastien]
- Removed useless call to `plone.belowcontent` viewlet in person view.
[gbastien]

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- On persons listed on the directory view, display held_positions when hovering
person title (tooltip).
[gbastien]
- Display organization details (tooltip) when hovering organization link.
- Make it easy to override the way sub organizations are displayed on an
organization by calling a suborganizations view.
[gbastien]
- Use a tag `<h3>` to display label of `Organizations` and `Positions` contained
in an `Organization` like it is already the case for `Held positions` and
`Other contacts`.
[gbastien]
- Do not use `unittest2` anymore, use `unittest` instead.
[gbastien]

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- Added 'utils.get_gender_and_number' that returns the gender and number of a
given list of contacts. This is useful to manage gender (female/male) and
number (singular/plural) for generated words.
[gbastien]