Imio.helpers

-----------------

- Added `appy.pod` sample that show problem of wrongly defined style like
`margin-left: opt;` using `opt` instead `0pt`.
[gbastien]
- Added `appy.pod` sample that show problem of class not used in `<li>`
or `<td>`.
[gbastien]
- Added methods `content.disable_link_integrity_checks` and
`content.restore_link_integrity_checks` to be able to disable the
`enable_link_integrity_checks property` and to restore it to it's original
value. This works for Plone4 (property) and Plone5 (registry).
[gbastien]
- Fix import of `IEditingSchema` on Plone5.
[gbastien]

-----------------

- Added collapsible option on container view.
[sgeulette]
- Do not store date for get_cachekey_volatile/invalidate_cachekey_volatile_for
in a volatile (_v_...) as it seems "stored" by thread and is computed to much
times.
[gbastien]
- Added JS helper method has_faceted returning true if currently on a faceted.
[gbastien]

-----------------

- Added `appy.pod` usecase to show problems with table optimization if
`<td>` has a defined size.
[gbastien]
- Added `appy.pod` usecase to show problems with table having a first empty
`<tr></tr>` that do not render second column of following lines.
[gbastien]
- Added `appy.pod` usecase for line-height style.
[gbastien]
- Added `appy.pod` usecase for `<img>` without `src` that breaks generation.
[gbastien]
- Do not break in `xhtml.imagesToPath` if `<img>` does not have a `src`.
[gbastien]

-----------------

- Display more logging in `content.validate_fields` when bypassing validation.
[gbastien]
- In `catalog.addOrUpdateIndexes`, pass a `ZLogHandler` to `reindexIndex` so the
progress is shown in the Zope log.
[gbastien]
- In `content.add_to_annotation` and `content.del_from_annotation`, store
annotation in a `PersistentList` instead a `set()` to avoid persistence
problems.
[gbastien]

-----------------

- Improved content create to avoid creating object when defined id already exists.
[sgeulette]
- Added methods content.uuidsToCatalogBrains and content.uuidsToObjects.
[gbastien]
- Adapted `content.validate_fields` to bypass validation when field.required=False,
value is None and field type is other than Bool. Validation is also bypassed for
field using a `source` attribute because it fails for now...
[gbastien]
- Added parameter raise_on_errors to content.validate_fields to raise a ValueError
when errors are found instead simply returning it.
[gbastien]

-----------------

- Added `content.get_schema_fields` to get schema fields (behaviors included
by default).
[sgeulette]
- Pep8 on imports.
[sgeulette]
- Added appy.pod usecase for lists containing tables.
[bleybaert]
- Added dependency on `Plone` in `setup.py`.
[gbastien]
- Do not break in `xhtml.storeImagesLocally._handle_internal_image` if image
src is not a path to an image but to another element (like `Folder` or
`Plone Site`).
[gbastien]